Answer:
The brain
Explanation:
The brain stem connects the brain with the spinal cord.
Answer:
C - the spinal cord
Explanation:
the cord is connected to the brain and travles down the body connecting itself
Hypothesis:
In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
Test One: If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.
Test Two: If I breed a short fur, Ff female with a short fur, Ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.
Test Three: If I breed a long fur, ff female with a long fur, ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.
Procedure:
The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation.
Remember, the test variable is what is changing in this investigation. The outcome variable is what you are measuring in this investigation.
Test variable (independent variable):
Outcome variable (dependent variable):
Data:
Record the data from each trial in the data chart below. Be sure to fill in the chart completely.
Test One
Parent 1: FF
Parent 2: Ff
Phenotype ratio:
________ : ________
short fur : long fur
Test Two
Parent 1: Ff
Parent 2: Ff
Phenotype ratio:
________ : ________
short fur : long fur
Test Three
Parent 1: ff
Parent 2: ff
Phenotype ratio:
________ : ________
short fur : long fur
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
1. Which genotype(s) and phenotype for fur length are dominant?
2. Which genotype(s) and phenotype for fur length are recessive?
3. If you have a hamster with short fur, what possible genotypes could the hamster have?
4. If you have a hamster with long fur, what possible genotypes could the hamster have?
5. Did your data support your hypotheses? Use evidence to support your answer for each test.
o Test One:
o Test Two:
o Test Three:
6. Which hamsters are the parents of the mystery hamster? Include evidence to prove that they are the correct parents.
The genotype FF and Ff for short fur length are dominant.
The genotype ff for long fur length is recessive.
If you have a hamster with short fur, the possible genotypes could be FF or Ff.
If you have a hamster with long fur, the genotype must be ff.
The data collected supports the hypotheses as follows:
Test One: If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see all short fur offspring. The data showed all short fur offspring, supporting the hypothesis.
Test Two: If I breed a short fur, Ff female with a short fur, Ff male, then I will expect to see a ratio of 3:1 short fur to long fur offspring. The data showed a ratio of 3:1 short fur to long fur offspring, supporting the hypothesis.
Test Three: If I breed a long fur, ff female with a long fur, ff male, then I will expect to see all long fur offspring. The data showed all long fur offspring, supporting the hypothesis.
Without additional information, we cannot determine the parents of the mystery hamster. We need to perform a cross in order to determine the possible genotypes and deduce the parents of the mystery hamster.
Explain how the respiratory and circulatory systems interact.
Answer:
The respiratory system interacts with the circulatory system, because the circulatory system is able to transport oxygen and carbon dioxide throughout the body from the respiratory system. Another system interaction is the sharing of the Pharnyx by the digestive and respiratory system, because it is used to swallow food and to breathe.
What is the surface temperature of Barnard's Star in Kelvins? (Astronomy)
Answer:
the answer should be 3,100 kelvin.
Explanation:
its surface has very hot flares causing it to be about 3,000 to 8,000 kelvins. this would mean its surface temperature should be around 3,100.
Many types of plants produce fruit which is eaten by animals. The seeds of these plants are typically undigestible. Which of the following is an advantage for plants having undigestible seeds? It allows seeds to reside in the gut until conditions are appropriate for germination. It ensures that flowers of these plants will be pollinated. It allows the seeds to be dispersed into other areas. It provides a source of nutrients for the germinating seed.
The advantage for plants having undigestible seeds is that it allows seeds to reside in the gut until conditions are appropriate for germination.
Fruits are a source of nutrition for animals that consume them, and they are also a means of seed distribution for plants that produce them. Many types of plants generate fruit that is consumed by animals; nevertheless, the seeds of such plants are usually indigestible. As a result, the seeds can be dispersed into new areas by animals that eat the fruit.
However, having undigestible seeds provides a distinct benefit to plants: it allows seeds to reside in the gut until conditions are appropriate for germination, which aids in seed growth and germination.
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Which of the following organisms is a heterotroph? a) Rose b) Pine tree c) Deep-sea tubeworm d) None of these
Since the given organisms prepare their own food, hence none of the organisms mentioned are heterotrophs. Thus, the correct answer is Option D.
Heterotrophs are organisms that depend on other species (plants and animals) for food since they are unable to prepare it for themselves. They are dependent on these producers for food, either directly or indirectly.
The rose and the pine tree, two of the choices given, are both autotrophs since plants can make their own food through photosynthesis. On the other hand, the deep-sea tubeworm is a chemoautotroph, meaning it gets its energy from inorganic substances in its surroundings.
Therefore, the correct answer is Option D.
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Answer:
nxm ZQM
Explanation:
XM AM
When speakers substitute the word "flight attendant" for "stewardess" or "steward," they are using language that is Group of answer choices jargon. biased. unbiased. universal.
Answer:
Biased (or Jargon)
Explanation:
If they say "flight attendant" then it is is a universal term to call both male and female flight attendants. While if they say "stewardess" and "steward" they are specifying the gender of said flight attendants. Note that saying "stewardess" over "flight attendant" varies for each individual person, and where your from.
never mind i dont need help
Answer:
okay buddy, have fun with that.
Explanation:
thanks
Ok
k lol
To short
Why are you still here
Ok bye
A mitochondrion is having a problem creating enough energy to build new molecules. Which problem most likely exists with the mitochondrion
When a mitochondrion is not creating enough energy to build new molecules the reason for this is proton pump is not working properly .
Enzyme in mitochondrial respiratory chains works as proton pump, they use energy to transfer protons across the inner mitochondrial membrane and create an electrochemical gradient used for the production of ATP.
The energy used in the electron transport chain pumps protons across the inner mitochondrial membrane from the inner matrix to the intermembrane space, producing a strong hydrogen concentration gradient. Defect in creating this hydrogen concentration gradient often results in less energy production .
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Which of the following would most likely cause a large number of density-independent deaths in a population?awinter stormsbpredatorsclimited resourcesddisease-carrying insects
The most likely cause of a large number of density-independent deaths in a population is winter storms.
Density-independent factors are abiotic or biotic factors that affect the population's size regardless of the population's density. A population's birth rate and death rate are not dependent on the population density when it is affected by these factors. Examples of density-independent factors include natural disasters such as fires, hurricanes, and floods; human-induced disasters such as oil spills; weather-related disasters such as hurricanes, extreme cold, and droughts; and biological factors such as diseases, parasites, and predators. If we look at the given options, among winter storms, predators, limited resources, and disease-carrying insects; winter storms are the most likely cause of a large number of density-independent deaths in a population.Learn more about density-independent factors: https://brainly.com/question/30772161
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Climate
Weather
B
D
E
F
H.
Answer:
B
Explanation:
because climatic conditions differs with atmosphere of different places
Two offspring from same parents can have different phenotypes. How is this possible?
Answer:
Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene, with one allele provided by each parent of an organism. However, an allele that is hidden, or not expressed by an organism, can still be passed on to that organism's offspring and expressed in a later generation.
Explanation:
Overdominance, in instance, happens when a heterozygote exhibits a more extreme phenotype than either of its parents.
What is heterozygote?Heterozygote is defined as a person, animal, or other thing possessing a pair of different alleles of a specific gene, one of which is dominant and the other recessive. One normal allele and one mutated allele, or two distinct mutated alleles, can make up a heterozygous genotype.
The explanation is connected to the fact that each parent has two different gene pools. Furthermore, only 50 percent of each parent's DNA is transferred to their offspring. and that the portion that is passed down is random. Every child has a unique set of genes thanks to the interaction of all these influences.
Thus, overdominance, in instance, happens when a heterozygote exhibits a more extreme phenotype than either of its parents.
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25 POINTS!!! PLS ANSWER CORRECTLY!!!!
Which of the following pairs of planets have the most in common?
A. Jupiter and Neptune
B. Mercury and Venus
C. Mars and Uranus
D. Earth and Saturn
Answer:
probably saturn and uranus, since are both giants.
but in the choices the most in common is venus and mercury so the answer is b.
Can glycerophospholipids hace different head groups? If so, give examples.
Yes, glycerophospholipids can have different head groups. Glycerophospholipids are composed of a glycerol backbone, two fatty acid chains, and a phosphate group linked to a head group. The head group can vary, giving rise to different types of glycerophospholipids. Examples of glycerophospholipids with different head groups are PC, PE, PI, etc.
The head group is attached to the phosphate group on the glycerol backbone of the lipid, and different types of head groups can alter the overall properties and functions of the glycerophospholipid.
Each of these different head groups can confer different chemical properties to the glycerophospholipid, such as charge, polarity, and size, which can affect their functions in cell membranes, signaling pathways, and other biological processes.
1. Phosphatidylcholine (PC): Choline is the head group.
2. Phosphatidylethanolamine (PE): Ethanolamine is the head group.
3. Phosphatidylserine (PS): Serine is the head group.
4. Phosphatidylinositol (PI): Inositol is the head group.
These variations in head groups contribute to the diversity and functionality of glycerophospholipids in cell membranes.
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Which statement gives one reason that watershed protection programs are needed in Virginia
Ecosystems need to be controlled
Foods must be prevented
Dams can be damaged and may require repair
Wildlife can ruin water source when building habitats
Answer:
Dams can be damaged and may require repair
Explanation:
This is imperative to provide needed supports and maintenance for the aging dams,with capacity of up to 11,000. This dams were created as far back as 1948.Therefore the programme was geared towards effective re-habitation for maximum efficiency.
This repair programmes was termed Dam Rehabilitation Programme.And the secretary of Agriculture was given the authority to ensure effective execution of the programme.
In the state of Virginia,a total of 150 dams were part of the government landscape through the rehabilitation programme, and 11 of these have been well studied. .Todd Lake,Robinson Hallow, Lake Barton are some of these examples.
Answer:
the answer is c
Explanation:
Scientific knowledge is always changing.
TRUE
FALSE
Answer:
Yes! I think/ True
Explanation:
The accepted views of science knowledge can change over time. Changes can result from new science observations, but can also be affected by social, political or religious convictions.
Answer:
True
Explanation:
Because the more technology improves on the daily the easier it'll be to discover new things about science that in the past were not achievable because they didn't have the proper resources
How much of the fluid that comprises filtrate is reabsorbed into the bloodstream?
99 percent of the fluid that comprises filtrate is reabsorbed into the bloodstream.
This filtrate contains anything that is small enough to pass through the capillaries' pores and escape. Bowman's capsule absorbs the filtrate and passes it back into the renal tubule. Many of these compounds that the body actually wishes to maintain are predominantly recovered by the proximal convoluted tubule, which is the initial portion of the renal tubule.
In actuality, around 99% of the substances that are filtered out of the glomerulus are actually reclaimed by the nephron and placed back into the blood stream. These compounds include glucose, amino acids, and ions.
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Which statement about cellular respiration is true?
O It produces oxy
O It requires water
O It is used by every living cell.
O It converts energy to food.
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Why are most cells small?
(Science)
If the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. When this happens, the cell must divide into smaller cells with favorable surface area/volume ratios, or cease to function. That is why cells are so small.
simpler answer: Cells are small because they need to keep a surface area to volume ratio that allows for appropriate intake of nutrients while being able to eliminate the cells waste.
Two tomato plants are cross pollinated to produce tomato plants that produce more tomatoes.
A) Genetic engineering
B) Selective breeding (Artificial selection)
Answer:
Genetic Engineering
Explanation:
Image result for Two tomato plants are cross pollinated to produce tomato plants that produce more tomatoes.
When tomatoes cross pollinate, the genetic material of the two tomato varieties will combine and the seeds will be hybridized. Cross pollination will not affect the fruit, only the seeds inside.
Answer:
b
Explanation:
selective breeding Artificial selection
The amino acid alanine is often taken by weight lifters to enhance performance. Which part of alanine gives the amino it's distinctive properties? A. hydrogen atom B. amino group C. R group D. carboxyl group
The R group of alanine gives the amino it's distinctive properties.
What is alanine?
Alanine is an amino acid which is found in proteins. It is one of the 20 amino acids that are used by cells to synthesize proteins, and it is considered a non-essential amino acid because the body can synthesize it from other compounds. It plays an important role in the transport of nitrogen from one part of the body to another. It is also involved in glucose metabolism and energy production.
What are Amino acids?
Amino acids are organic molecules composed of amine and carboxylic acid functional groups, along with a side chain specific to each amino acid. They are the building blocks of proteins, which are essential components of all living organisms. There are 20 different types of amino acids that are commonly found in proteins.
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A fracture to which of following bones is a common injury in automobile accidents?
A. Scapula
B. Clavicle
C. Humerus
D. the 1st rib
Answer: Im pretty sure it is Clavicle.
Explanation:
Because when you get in a car accident you would bang your head forward causing you to break your Clavicle
The bone that is commonly fractured in automobile accidents is the clavicle or collarbone.
What are automobile accidents?Automobile accidents, also known as car accidents or road traffic accidents, occur when a motor vehicle collides with another vehicle, pedestrian, animal, road debris, or other stationary obstruction, such as a tree, pole or building.
In automobile accidents, the force of impact can cause various types of injuries to the human body, including fractures. A fracture is a break in the continuity of the bone, and it can occur to any bone in the body. However, certain bones are more susceptible to fractures in automobile accidents than others.
The clavicle, or collarbone, is one such bone that is commonly fractured in automobile accidents. This is because the clavicle is located just under the skin and is relatively unprotected. In addition, the force of the impact in an accident is often directed towards the chest area, which can result in a fracture of the clavicle.
Other bones that can be fractured in automobile accidents include the humerus (upper arm bone) and the scapula (shoulder blade). However, the first rib is not a bone that is commonly fractured in automobile accidents. The first rib is located deep in the chest and is relatively well-protected by the surrounding structures, such as muscles and other bones.
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Which of the following is the correct sequence that describes the excitation and contraction of a skeletal muscle fiber?
1. Tropomyosin shifts and unblocks the cross-bridge binding sites.
2. Calcium is released and binds to the troponin complex.
3. The sarcoplasmic reticulum is depolarized when a wave of depolarization moves from the neuromuscular junction into the cell's interior by way of the transverse tubules.
4. The thin filaments are ratcheted across the thick filaments by the heads of the myosin molecules using energy from ATP.
5. An action potential in a motor neuron causes the axon to release acetylcholine, which depolarizes the muscle cell membrane at the neuromuscular junction.
a. 1 → 2 → 3 → 4 → 5
b. 2 → 1 → 3 → 5 → 4
c. 3 → 4 → 2 → 1 → 5
d. 5 → 3 → 1 → 2 → 4
e. 5 → 3 → 2 → 1 → 4
The correct sequence is e) 5 → 3 → 2 → 1 → 4. You can see the explanation below.
The correct sequence that describes the excitation and contraction of a skeletal muscle fiber is:
An action potential in a motor neuron causes the axon to release acetylcholine, which depolarizes the muscle cell membrane at the neuromuscular junction.
The sarcoplasmic reticulum is depolarized when a wave of depolarization moves from the neuromuscular junction into the cell's interior by way of the transverse tubules.
Calcium is released and binds to the troponin complex.
Tropomyosin shifts and unblocks the cross-bridge binding sites.
The thin filaments are ratcheted across the thick filaments by the heads of the myosin molecules using energy from ATP.
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what are the chemicals represented by the X?
Which components are required in plasmids? (select all that apply)
a. A selectable marker, usually antibiotic resistance
b. A bacterial artificial chromosome
c. One or more unique restriction sites where foreign DNA can be added
d. An origin of replication to allow it to replicate in E. coli independently of the host chromosome
Plasmids are essential for scientific research and genetic engineering because they are independent of the host bacterium's chromosome.
Here correct answer is E)
They can be used to introduce changes into the genome and as a delivery system for foreign DNA into the cell. Plasmids must contain several components for them to be used properly. A bacterial artificial chromosome (BAC) helps to ensure that any changes made to the plasmid's DNA will be maintained. A selectable marker, usually an antibiotic resistance gene, is also necessary to identify colonies carrying the plasmid during cloning processes.
Additionally, one or more unique restriction sites need to be included in order for foreign DNA to be added to the plasmid. Finally, an origin of replication is needed to ensure that the plasmid can replicate independently of the host chromosome. With all of these components present, a plasmid can be readily employed for a multitude of experiments and is an efficient means of introducing genetic changes and foreign DNA into a cell.
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PLEASE HELP!!!!
I NEED THIS ASAP
Answer:
b
Explanation:
Answer: C habitat
Explanation: Biome would be less specific and examples of biomes are Tundra, Desert, and Aquatic (there are more).
Community would widely be referring to humans and people within that community and maybe businesses.
Niche- “In ecology, the term “niche” describes the role an organism plays in a community.“ -National Geographic Society
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All floods have warning signs and so disasters can be prevented. TRUE OR FALSE
Answer:
true
Explanation:
if you were investigating a crime and received a genetics report, which would be the most useful characteristic in helping identify the suspect?
a. blood type
b. brown hair
c. blonde hair
d. blue eyes
Answer: Blood type is the most useful characteristic for identifying a suspect in a crime from a genetics report.
Explanation:
Blood type can be a valuable piece of evidence as it can narrow down potential suspects and provide information about the possible perpetrators. Other physical characteristics such as hair color or eye color can vary widely within the population and may not be as specific or unique for identification purposes.
Which of the following best describes an advantage of constructing habitat corridors?
A. Corridors connect habitats separated by fragmentation and connect wildlife populations.
B. Corridors prevent invasive species from traveling between protected habitats.
C. Corridors provide a safe passage for vehicles and allow humans to travel within wildlife preserves.
D. Corridors increase the amount of protected area that is not affected by humans.
The statement that best describes an advantage of constructing habitat corridors is that Corridors connect habitats separated by fragmentation and connect wildlife populations. That is option A.
What are habitat corridors?Habitat corridors is defined as those wildlIfe corridors that allows for a connection between populations or habitats that are isolated with the aim of promotion of genetic diversity.
The importance of habitat corridors include the following:
increase food sources, provide valuable cover, decrease the chance of predation, and by reconnection of fragmented and isolated populations.Learn more about wildlife here:
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Una especie de mariposa presenta rasgos fenotípicos diferentes entre los miembros de sus poblaciones. Estos rasgos van desde una coloración verdosa y antenas cortas (características recesivas). El fenotipo más común (características dominantes) de esta especie es de coloración amarilla y de antenas tan largas que se pueden doblar. Realice el cruce entre dos mariposas que presentan fenotipo más común, pero de genotipos heterocigotos y determine los posibles rasgos fenotípicos que se pueden presentar.
Answer:
can you please translate for us into English