The outbreak in spread epidemic diseases such as swine flu are tracked by? A epidemiologist or a sonographer
Answer:
An epidemiologist
Answer:
A g I need the same answer homie
Explanation:
PLEASE HURRY
One of the big ideas of continental drift theory states that all of the continents used to ___________________________.
a have a continuous layer of dense glacial ice
b form a single, massive continent called Pangea
c constantly change as global volcanic chains erupted
d be broken into millions of small, distinct archipelagos
Magnetic patterns in the igneous bedrock on the ocean floor _________________________________________________.
a indicate that all ocean rocks have reversed polarity
b differ greatly from the patterns found in rocks on land
c show alternating bands of normal and reversed polarity
d seems to be unrelated to the age of the bedrock
Plates that are subducted at convergent boundaries can form _______________________________________.
a rolling hills
b deep-sea trenches
c rift valleys
d tall, folded mountains
Oceanic trenches are long, narrow depressions on the ocean floor. An oceanic trench is formed when one plate ____________________________________________________________.
a dips below another plate
b pulls back from another plate
c splits into two plates
d grinds against another plate
Answer:B
Explanation:
which of the following questions about the origin of life on earth is most scientifically testable
A scientific question can be answered by experiments. The most scientifically testable question is; can simple organic molecules form spontaneously in an oxygen-free atmosphere?
What is a scientifically testable question?We say that a question is scientifically testable if its answer can be found by carrying out a scientific research on the question.
Now having seen the question and considering all the options listed, the most scientifically testable question is; can simple organic molecules form spontaneously in an oxygen-free atmosphere?
Missing parts:
Which of the following questions about the origin of life on Earth is most scientifically testable? (A) Why were the earliest life-forms created using only twenty amino acids? (B) Did life originate to make the universe a better place? (C) Was catalytic RNA used by ancient organisms as a stepping stone to acquire protein enzymes? (D) Can simple organic molecules form spontaneously in an oxygen-free atmosphere?
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8. In 1979, scientists started an experiment in Amazon to determine whether habitat fragments on land behaved like the islands studied by Wilson and his colleagues. How is a habitat fragment on land similar to an island in the ocean? pro likely to be lost from sm
Both are cut off from other habitats. Water separates islands in the ocean. Human development, such as farms, roads, and towns, separates habitat fragments on land.
What is habitat fragmentation on land and island?The emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), resulting in population fragmentation and ecosystem decay, is referred to as habitat fragmentation.Geological processes that slowly alter the layout of the physical environment, as well as human activity such as land conversion, can alter the environment much faster, causing the extinction of many species. Habitat fragmentation is the process by which large, contiguous habitats are divided into smaller, isolated patches of habitat.Habitat islands are habitat fragmented areas surrounded and separated by areas of destroyed or degraded habitat. Habitat fragmentation results in the formation of habitat islands. Nature's highways are wildlife corridors. These are the paths and areas that wildlife use to get from one location to another.To learn more about habitat fragmentation refer to :
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which of the following is an observation or inference on which natural selection is based? which of the following is an observation or inference on which natural selection is based? species produce more offspring than the environment can support. individuals do not vary in their heritable characteristics. nearly all of each individual's offspring will survive and reproduce. only well-adapted individuals produce offspring.
Following is an observation or inference on which natural selection is based D) only well-adapted individuals produce offspring.
In general , Darwin's observations helps to state a theory of natural selection as the Overproduction in all species will help to produce more offspring that will gradually survive upto the adulthood. Also their will be Variation and these variations lies between members of the same species. important property is termed as Adaptation in which the traits helps in increasing the suitability to a species in the environment as they move on.
Hence, Darwin finally made specific inferences as There is variation within populations. These variations can some time be favorable but the limitation arises when the young population can't survive.
Hence , D is the correct option
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In cats the trait for hair length is controlled by gene S, where the dominant allele(S) results in short hair and recessives have long hair. The W gene is known as the "masking" gene because a cat that has a dominant W allele in its genotype will have an all-white coat due to a lack of melanin in its skin. Cats with a ww genotype can have a coat of any color, depending on the inheritance of other genes that determine coat color.
A male with long hair and a white coat is crossed with a female cat with short hair and a white coat. The owner of the cats has heard about the masking gene and believes that the cross will produce a litter of all-white kittens, some with short hair and some with long hair.
(a) is the owner's prediction accurate? give evidence to support your response.
(b) Based on the given information, determine all of the possible genotypes of the kittens in the litter
(a) The owner's prediction is not accurate.
(b) The possible genotypes of the kittens in the litter are SSWW, SSWw, and SSww.
A. The W gene is a dominant gene that masks the expression of other genes, such as the S gene. Therefore, even if both parents have the same genotype for the S gene, the presence of a dominant W gene will result in all of the kittens having a white coat. Therefore, there will not be any kittens with a long-haired coat in the litter, since the W gene masks the expression of the S gene.
B. The SSWW genotype would result in all of the kittens having short hair and a white coat. The SSWw genotype would result in some kittens having short hair and a white coat and some kittens having long hair and a white coat.
The SSww genotype would result in all of the kittens having long hair and a white coat. Therefore, it is possible that the litter could contain any combination of the three genotypes.
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please help im crying so much
In mammalian females, the majority of one X chromosome's genes are shut down in a process called X chromosome _____. The inactive X is condensed and afterwards called a _____. Because the shutdown is random in the embryonic cells formed by the time inactivation occurs, all mature mammalian females are a
_____ for the expression of X chromosome genes. The inactivation of one X in the female is thought to balance gene expression between males and females, a theory called _____. The shutdown of the X chromosome is accomplished by the
______ gene. _____ is the master gene for male sex determination in mammals and is found on the human Y-chromosome.
In mammalian females, the majority of one X chromosome's genes are shut down in a process called X chromosome inactivation. The inactive X is condensed and afterwards called a barrbodies. Because the shutdown is random in the embryonic cells formed by the time inactivation occurs, all mature mammalian females are a inactivate for the expression of X chromosome genes. The inactivation of one X in the female is thought to balance gene expression between males and females, a theory called X-inactivation/Lyonisation. The shutdown of the X chromosome is accomplished by the Xist gene. SRY is the master gene for male sex determination in mammals and is found on the human Y-chromosome.
how much heat energy is needed to melt 1 gram of ice?
The amount of heat energy required to melt 1 gram of ice is known as the heat of fusion. The heat of fusion of ice is approximately 334 joules per gram (J/g).
This means that to melt 1 gram of ice at 0 degrees Celsius (32 degrees Fahrenheit) and convert it to liquid water at the same temperature, 334 joules of heat energy must be added to the system. Conversely, when 1 gram of liquid water at 0 degrees Celsius is cooled and solidified to form 1 gram of ice, the same amount of heat energy (334 J/g) is released from the system.
It's worth noting that the heat of fusion of ice can vary slightly depending on the conditions, such as the pressure and temperature. The value of 334 J/g is for standard pressure and temperature conditions (at 1 atm and 0 degrees Celsius).
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what organisms make up the ecological community identified
An ecological community is made up of different types of organisms in a place. An ecological community is a trophic structure made up of trophic compartments and is the collection of organisms in groups that feed and are devoured by one another from a theoretical systems perspective (food chain and food web).
A forest community is made up of all of the trees, the plant community, birds, squirrels, deer, foxes, fungi, and fish in a forest stream, insects, and any other local or seasonal species.
What about organisms?A living human, plant, or animal that is capable of carrying out life's processes thanks to organs with unique roles but interdependent relationships. Something with numerous connected pieces that work as a unit.Humans are most often biologically similar to other living things. A living creature that has an organized structure, is capable of responding to stimuli, can reproduce, develop, adapt, and preserve homeostasis is referred to as an organism. Therefore, every animal, plant, fungus, protist, bacterium, or archaeon found on Earth would be considered an organism. Taxonomy separates species into protists, bacteria, and archaea, which are unicellular microorganisms, or multicellular animals, plants, and fungi. Although there are about 30 trillion human cells in every human body, there are also an estimated 39 trillion microbial cells, including bacteria, viruses, and fungus, that live on and inside us. This is known as our microbiome. The parts fit and function as a unit because they are organized. Therefore, living objects are referred to as organisms. The genetic makeup of the cell, or DNA, regulates how the cell behaves.Learn more about organisms here:
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The movement of tectonic plates in two locations is described below:
Location A: Tectonic plates collide and one plate moves over the other while the other plate is pushed deep into the mantle
Location B: Tectonic plates slide past each other
PLS HELP I WILL GIVE BRAIBLIEST AND 100 POINTS
Which statement is most likely correct?
Volcanic eruptions may occur in both locations.
There is no chance of earthquakes in the two locations.
Mountains may form in Location B but not in Location A.
Subduction happens in Location A but not in Location B.
Explanation:
volcanic eruption may occur in both location
Answer: D
Explanation subduction happens when one plate is ontop of another and pushes it into the matel
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true or false
Mutations are the ultimate source of genetic variation.
Explanation:
genetic variation is partially because of mutations, but mostly because of the random genes selected from your parents. so I wouldn't say its the ultimate source of genetic variation, but it is A source.
the spleen does all of the following except: group of answer choices become a site for extramedullary hematopoiesis(myelofibrosis) trap red blood cell inclusions(howell-jolly bodies, etc) serve as a reserve and storage site for platelets become enlarged in adults with sickle cell anemia contribute to the function of the humoral immune system
The spleen does all of the following except serve as a reservoir and storage site for platelets. A spleen is a small organ inside our left rib cage, just above the stomach. It is a part of the lymphatic system which is part of the immune system.
What does the spleen do?
Our spleen:-
Stores blood, and filters blood by removing cellular waste and getting rid of old or damaged blood cells. The spleen makes white blood cells and antibodies which help us fight infection. It maintains the levels of fluid in our body.
Our spleen helps fight certain types of bacteria also. The blood vessels in the spleen can expand and contract, depending on your body's needs. The spleen stores blood and when a person loses a lot of blood, the spleen can respond by releasing blood back into the person's blood system.
Many diseases and conditions can affect how the spleen works. A ruptured(torn) spleen can be fatal. If a person has had their spleen removed, or is diagnosed with a spleen that is not working, they have an increased lifelong risk of bacterial infections.
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Why is coal considered to be a nonrenewable energy resource?
A.
Sunlight is the original source of energy for coal
B.
The burning of coal could cause environmental pollution
C.
Once coal is mined, it can take millions of years to be replaced
D. Coal is abundant, but is very expensive to mine from underground
Answer:
C.
Coal is made from fossilized remains of ancient plants and animals. When coal is mined/burned it takes millions of years for it to be replaced.
During germination, peas sprout and grow. The data table shows the carbon dioxide produced during the germination period of peas under different conditions. Condition
Rate of carbon dioxide produced (mL/min)
Germinating peas, 10ºC
0. 01
Germinating peas, 20ºC
0. 02
What is the best conclusion?
The correct option is C, Germinating peas at 20ºC have a higher fee of cellular respiration than germinating peas at 10ºC.
Cellular respiration is the process by which cells in living organisms generate energy from the food they consume. This process occurs in the mitochondria, which are organelles found in most eukaryotic cells. Cellular respiration is a series of complex biochemical reactions that involve the breakdown of glucose (or other organic molecules) to release energy in the form of ATP (adenosine triphosphate). This process involves three main stages: glycolysis, the citric acid cycle, and oxidative phosphorylation.
During glycolysis, glucose is broken down into two molecules of pyruvate. This process generates a small amount of ATP and NADH (nicotinamide adenine dinucleotide), which carries electrons to the next stage. The citric acid cycle then oxidizes pyruvate to produce more ATP, NADH, and FADH2 (flavin adenine dinucleotide).
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Complete Question:
in the course of germination, peas sprout and grow. The facts table indicates the carbon dioxide produced for the duration of the germination length of peas beneath different situations.
circumstance
charge of carbon dioxide produced (mL/min)
Germinating peas, 10ºC
zero.01
Germinating peas, 20ºC
zero.02
what is the excellent end?
A) The price of mobile breathing in germinating peas is exactly 1000 instances the rate of ATP production.
B) Germinating peas at 10ºC create carbon dioxide at a rate of 0.01 mL/min during ATP manufacturing.
C) Germinating peas at 20ºC have a higher fee of cellular respiration than germinating peas at 10ºC.
D) The fee of cellular breathing can not be measured without understanding the charge of ATP production.
C) Germinating peas at 20ºC have a better fee of cellular respiratory than germinating peas at 10ºC.
S. WHAT TYPE OF RELATIONSHIP EXISTS BETWEEN BUMBLE BEES AND FLOWERS?
BUMBLE BEE DISLODGING POLLEN
1.40
Hint: Pollen provides bumble bees with protein. They also make honey by
chewing pollen and mixing it with their saliva.
Answer:
Answer: Mutualism or also known as Symbiosis.
Explanation:
As the bumble bee is provided with protein from the pollen, the follower is also benefitting from the bumble bee by BEING pollinated.
find the sequence that would base pair correctly with attcggc.
The sequence that would base pair correctly with attcggc is taagccg.
To find the sequence that would base pair correctly with attcggc, we need to follow the complementary base pairing rule in DNA. According to the rule, adenine (A) always pairs with thymine (T), and cytosine (C) always pairs with guanine (G).
Given the sequence attcggc, we can determine the complementary sequence by replacing each base with its complementary base:
a (adenine) pairs with t (thymine)t (thymine) pairs with a (adenine)t (thymine) pairs with a (adenine)c (cytosine) pairs with g (guanine)g (guanine) pairs with c (cytosine)g (guanine) pairs with c (cytosine)c (cytosine) pairs with g (guanine)Therefore, the sequence that would base pair correctly with attcggc is taagccg.
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The sequence that would base pair correctly with ATTCGGC is TAAGCCG.
In DNA molecules, there are four nitrogenous bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Adenine can only pair with thymine, while guanine can only pair with cytosine.
The DNA sequence ATTCGGC could base pair correctly with TAAGCCG. The base pairing in DNA always follows a specific rule where adenine (A) pairs with thymine (T) and guanine (G) pairs with cytosine (C).
Therefore, the complementary sequence to the given sequence ATTCGGC is TAAGCCG.
Note: it is worth noting that in RNA, the base thymine is replaced with uracil (U), and the complementary sequence to ATTCGGC in RNA would be UAAGCCG.
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Pangaea was a ... that formed near the end of the Paleozoic era.
Answer:
TRUE
Explanation:
When the axon is at rest, the inside of the neuron has a charge that is 70 millivolts more negative than the outside. This difference will continue as long as ___________.
This difference will continue as long as the axon is at rest. Generally, the resting potential in neurons is −70 mV.
What is resting potential?The resting potential is the electrical potential of a neuron when it is involved in the passage of a given stimulus.
This value (resting potential) depends on ion concentration on both sides of the plasma membrane.
The resing potential may change due to the presence of specific proteins called carriers that transport ions to both sides of the plasma membrane.
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The human population
doubles every 36 years. If people currently use
25 percent of Earth's primary production, in
what year might humans use 100 percent?
Which statement regarding serum magnesium (Mg ++) is true?
A) Alcohol-related diseases frequently cause low Mg+ levels.
B) Vomiting is not generally seen as a major cause of Mg+ loss.
C) Mg++ levels present similarly to calcium (Ca++) levels in the blood.
D) Mg+ deficiencies often result in low serum potassium (K+) levels.
E) Mg+ deficiencies must be treated before potassium (K+) deficiencies.
Answer: Option B,C,D and E.
Vomiting is not generally seen as a major cause of Mg+ loss.
C) Mg++ levels present similarly to calcium (Ca++) levels in the blood.
D) Mg+ deficiencies often result in low serum potassium (K+) levels.
Explanation:
Serum magnesium is the test that indicate the level of magnesium in the body. A person can have high serum magnesium or low serum magnesium.. serum magnesium is regulated by the kidney via henle loop.
A damage to the kidney can increase the magnesium level in the blood and cause hypermagnesemia. Renal failure cause magnesium excess and the body will not be able to excrete it.
Magnesium deficiency is similar to potassium deficiency.
A person with low magnesium may also have low calcium and low potassium because magnesium help to transport calcium and magnesium ions in and out of the body cells.
Administration magnesium is essential for correcting the hypokalemia. Magnesium deficiency inhibit and affect Na-K-ATPase, which in turn reduce cellular uptake of K+. A decrease in cellular uptake of K+, when it occurs along with increased urinary or gastrointestinal excretion, would lead to K+ wasting and hypokalemia.
magnesium deficiency exacerbates potassium wasting by increasing distal potassium secretion.
Vomiting is not a general cause of magnesium loss.
Therefore options B, C, D and E are correct
B) Vomiting is not generally seen as a major cause of Mg+ loss.
C) Mg++ levels present similarly to calcium (Ca++) levels in the blood.
D) Mg+ deficiencies often result in low serum potassium (K+) levels.
E) Mg+ deficiencies must be treated before potassium (K+) deficiencies.
a glove-like dermatitis, diarrhea, and dementia are signs of?
Glove-like dermatitis, diarrhea, and dementia are signs of pellagra. Pellagra is a dietary deficiency disease that is caused by a deficiency of vitamin B3 (niacin) in the diet. It is a metabolic condition characterized by a dermatitis rash, diarrhea, and dementia.
It is a rare disease that is most commonly seen in poor or malnourished populations in underdeveloped countries.Signs and symptoms of PellagraThe most common symptoms of Pellagra include the following:Glossitis, which is an inflamed tongue and lipsPhotosensitivityDermatitis, which is an itchy rash that is similar to a sunburnSymmetrical hyperpigmentation (darkened areas of skin)Hallucinations and dementiaDepression and confusionGastrointestinal symptoms, including abdominal cramps, nausea, and diarrhea Weakness and fatigue Pellagra is a serious condition that can be fatal if left untreated.
It can be easily treated with a diet that is rich in niacin and other essential nutrients. If you or someone you know is experiencing symptoms of Pellagra, it is important to seek medical attention right away.
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A student constructs a model using a fan and a pile of sand shaped like a dune. The student turns on the fan, observes the model for changes, and lists several conclusions in a chart.
1. Wind cannot erode landforms.
2. Wind can reduce the surface heights of landforms
3. Wind cannot transport materials
4. Wind cannot weather materials.
Answer: Im sorry i dont kno
Explanation:
Based on the observations of the sand dune model with a fan, the conclusions provided in the chart are incorrect. In reality, each statement's opposite is true.
What is Sand dune?A sand dune formed by wind or water flow is known as a sand dune. When there is a lot of loose sand present and the wind or water is powerful enough to shift the sand grains, sand dunes emerge. Beaches, deserts, and some riverbeds all contain sand dunes.
Based on the observations in the provided example, the following inferences are correct:
Landforms can be eroded by wind.Sand can be moved by wind and dumped elsewhere, altering the size and shape of landforms.Sand and other materials are transported from one location to another by wind, which is a significant agent of sediment transport.Materials can weather and degrade in the wind through abrasion and deflation.Therefore, the conclusions given in the chart are false based on the observations of the sand dune model.
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match each organelle to its structure group of answer choices nucleus [ choose ] rough endoplasmic reticulum [ choose ] smooth endoplasmic reticulum [ choose ] golgi apparatus [ choose ] lysosome [ choose ] mitochondrion [ choose ] chloroplast
The structure group of each organelle can be classified into two main categories: the membranous structure group and the non-membranous structure group. The membranous structure group includes the nucleus, rough endoplasmic reticulum, smooth endoplasmic reticulum, Golgi apparatus, lysosomes, mitochondria, and chloroplasts (found only in plant cells). The non-membranous structure group includes organelles such as ribosomes.
Nucleus: The nucleus is the control center of the cell. It is part of the membranous structure group because it is surrounded by a double membrane called the nuclear envelope. The nucleus contains DNA, which carries the genetic information of the cell.Rough Endoplasmic Reticulum (RER): The RER is part of the membranous structure group. It consists of a network of membrane-bound tubules and flattened sacs. The rough appearance is due to the presence of ribosomes attached to its surface. The RER is involved in protein synthesis and modification.Smooth Endoplasmic Reticulum (SER): The SER is also part of the membranous structure group. It lacks ribosomes on its surface, giving it a smooth appearance. It plays a role in various cellular processes, such as lipid synthesis, detoxification, and calcium storage.Golgi Apparatus: The Golgi apparatus is part of the membranous structure group. It consists of flattened membranous sacs called cisternae. The Golgi apparatus modifies, sorts, and packages proteins and lipids for transport to their final destinations within or outside the cell.Lysosome: Lysosomes are part of the membranous structure group. They are membrane-bound vesicles that contain digestive enzymes. Lysosomes break down cellular waste, old organelles, and foreign substances that have been engulfed by the cell through a process called phagocytosis.Mitochondrion: Mitochondria are part of the membranous structure group. They have a double membrane and are often referred to as the powerhouses of the cell. Mitochondria generate energy in the form of ATP through a process called cellular respiration.Chloroplast: Chloroplasts are part of the membranous structure group and are found only in plant cells. They have a double membrane and contain a pigment called chlorophyll, which enables them to carry out photosynthesis. Chloroplasts convert sunlight into chemical energy and produce glucose, a form of stored energy.Learn more about the membranous structure group at : https://brainly.com/question/28907659
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What chemical properties of water determines what organisms live there?
Answer:
The concentration of dissolved oxygen in water plays an important role in determining the type and amount of organisms (fish, invertebrates, plants etc.) that live in a lake and is a good indicator of the lake’s overall health.
Explanation:
:)
Answer: Properties of water are high heat capacity and heat of vaporization, its ability to dissolve polar molecules, its cohesive and adhesive properties, and its dissociation into ions that lead to generating pH. Understanding what the properties of water helps the importance of maintaining life...
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which proposed method is most likely to give rise to a large population of smaller-than-average dogs after 20 generations?please choose the correct answer from the following choices, and then select the submit answer button.answer choices(1) start with the two smallest dogs that you can obtain. (2) have them produce as many litters as possible. (3) repeat this for multiple generations.(1) start with a large population of dogs of varying sizes. (2) when selecting the dogs to breed in order to generate a new generation, choose the smallest two dogs, with respect to body size, and have them produce as many litters as possible. (3) continue mating the offspring of these litters for multiple generations.(1) start with a large population of dogs of varying sizes. (2) when selecting the dogs to breed in order to generate a new generation, select random pairs of dogs. (3) repeat this for multiple generations.no scenario would give rise to a population of smaller-than-average dogs; natural selection can only occur in the wild.(1) start with a large population of dogs of varying sizes. (2) when selecting the dogs to breed in order to generate a new generation, choose dogs in the lowest 20% with respect to body size. (3) repeat this for multiple generations.
The proposed method that is most likely to give rise to a large population of smaller-than-average dogs after 20 generations is option D) starting with a large population of dogs of varying sizes.
When selecting the dogs to breed in order to generate a new generation, choose dogs in the lowest 20% with respect to body size. Repeat this for multiple generations.
This method is likely to result in a smaller average size because it selectively breeds smaller dogs over multiple generations. By consistently selecting the smallest 20% of dogs with each breeding cycle, the population will likely become smaller in size.
However, it is important to note that this method may also result in other traits being inadvertently selected for or against, which could have negative consequences for the overall health and well-being of the population.
It is also worth noting that selective breeding should be done responsibly and with careful consideration for the welfare of the animals involved.
Breeders should always prioritize the health and well-being of the dogs they are working with, and should never prioritize aesthetics or other superficial traits over the health and welfare of the animals. The correct answer is D.
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Question
which proposed method is most likely to give rise to a large population of smaller-than-average dogs after 20 generations?
please choose the correct answer from the following choices, and then select the submit answer button.
answer choices
A)
(1) start with the two smallest dogs that you can obtain.
(2) have them produce as much litter as possible.
(3) repeat this for multiple generations.
B)
(1) start with a large population of dogs of varying sizes.
(2) when selecting the dogs to breed in order to generate a new generation, choose the smallest two dogs, with respect to body size, and have them produce as many litters as possible.
(3) continue mating the offspring of these litters for multiple generations.
C)
(1) start with a large population of dogs of varying sizes.
(2) when selecting the dogs to breed in order to generate a new generation, select random pairs of dogs.
(3) repeat this for multiple generations scenario would give rise to a population of smaller-than-average dogs; natural selection can only occur in the wild.
D)
(1) start with a large population of dogs of varying sizes.
(2) when selecting the dogs to breed in order to generate a new generation, choose dogs in the lowest 20% with respect to body size.
(3) repeat this for multiple generations.
What are the communication skills??
Answer:
presentation, active listening, nonverbal communication, giving/taking feedback,
Explanation:
Some of the most important communication skills for any job are presentation, active listening, nonverbal communication, giving/taking feedback, and others. Improve your communication skills by learning how to listen, noticing nonverbal cues, and practicing oral communication
i pick Hobby
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the intrinsic and extrinsic pathways of blood clotting are identical after formation of
The intrinsic and extrinsic pathways of blood clotting become identical after the formation of the prothrombinase complex. At this point, both pathways merge into the common pathway, leading to the conversion of prothrombin to thrombin, which ultimately results in the formation of a fibrin clot.
The intrinsic and extrinsic pathways of blood clotting are not identical after the formation of a clot. The intrinsic pathway is initiated by factors within the blood vessel itself, such as collagen, while the extrinsic pathway is initiated by factors outside the blood vessel, such as tissue factor. However, once a clot has formed, both pathways contribute to the stabilization and strengthening of the clot through the common pathway, which involves the activation of factor X and the conversion of prothrombin to thrombin.
This results in the formation of fibrin, which helps to reinforce the clot and prevent further bleeding. So, while the pathways have different initiators, they ultimately work together to achieve the same goal of stopping bleeding and promoting healing.
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Describe how humans have caused the following environmental
conditions, acid rain, habitat destruction, and introduction of non-
native/invasive species. What are some other harmful ways humans have
impacted the environment?
Other harmful ways that humans have impacted the environment include pollution of air, water, and soil, overfishing and hunting, and climate change caused by the release of greenhouse gases. These activities can have negative impacts on human health, as well as the health of ecosystems and the planet as a whole.
Humans have caused acid rain through the release of sulfur dioxide and nitrogen oxides into the atmosphere from burning fossil fuels. These gases react with water, oxygen, and other chemicals in the atmosphere to form sulfuric and nitric acids. Acid rain can have harmful effects on forests, lakes, and wildlife.
Habitat destruction is another environmental condition caused by humans. This is often due to activities such as deforestation, mining, and urbanization. These activities can result in the loss of natural habitats for animals and plants, leading to a decrease in biodiversity.
The introduction of non-native/invasive species is also a result of human activity. When humans transport species to new environments, they can disrupt the balance of the ecosystem. Invasive species can outcompete native species for resources, leading to a decline in biodiversity and potentially causing ecological and economic harm.
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What is the melting point of a substance?
(A) When its temperature changes from a
gas to a liquid.
B When its temperature changes from a
liquid to a solid.
© When its temperature changes from a
liquid to a gas.
D When its temperature changes from a
solid to a liquid.
Answer:
D.) when its temperature changes from a solid to a liquid
Explanation:
At the melting point the solid and liquid phase exist in equilibrium.
An organism that requires chemical nutrients which serve as final electron acceptors is an
A) chemotroph.
B) aerobe
C) phototroph.
D) lithotroph.
E) autotroph.
An organism that requires chemical nutrients which serve as final electron acceptors is a:
D) lithotroph.
Microbiology has been largely developed thanks to the discovery and optimization of culture media. The first liquid artificial culture medium was created by Louis Pasteur in 1860. Previously, bacterial growth on daily materials such as some foods had been observed. These observations highlighted the importance of the bacteria's natural environment and their nutritional needs in the development of culture media for their isolation. A culture medium is essentially composed of basic elements.
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