PIz help- Choose one plant
which sexually reproduces.
Compare and contrast
characteristics of the plant
with a variation of the same
plant.
Answers
Answer:
Two parents are involved (both male and a female). Gamete formation and fertilization take place. The whole process is slow and lengthy. Variation occurs; offspring are different from parents, genetically and physically.
Flowers reproduce sexually in plants. Angiosperms, like bryophytes, which are blooming plants, generate flowers as the reproductive organ.
What are flowers on a plant?The most developed plants that produce flowers are angiosperms. Thus, angiosperms are referred to as flowering plants. Angiosperms are characterized by their flowers, which are also the basis for sexual reproduction. Generally speaking, angiosperms can be divided into two groups: monocots and dicots.
What are blooming plants' principal parts?The stamen, a male component, and the pistil, a female component, make up the majority of floral components. The filaments and anthers make up the stamen. The pollen travels in the anthers. Typically, they are yellow in hue.
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Related Questions
c. Generate a bar graph comparing the water cloudiness in Parts 1-A and 1-B. What does the difference between the results mean about erosion in real life? (3 points)
Answers
The bar graph above shows the differences in water cloudiness between Parts 1-A and 1-B. The results indicate that the water in Part 1-B was significantly cloudier than the water in Part 1-A.
What is water ?Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's hydrosphere and the fluids of most living organisms. It is vital for all known forms of life, even though it provides no calories or organic nutrients. Its chemical formula is H2O, meaning that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. Water is the name of the liquid state of H2O at standard ambient temperature and pressure. It forms precipitation in the form of rain and aerosols in the form of fog. Clouds are formed from suspended droplets of water and ice, its solid state. When finely divided, crystalline ice may precipitate in the form of snow. The gaseous state of water is steam or water vapor.
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Ben measures the height of two bottles. One is 12 centimeters and the other is 15 centimeters. In millimeters what is the difference of the two heights
Answers
The difference in height between the two bottles is 30 millimeters.
To calculate the difference in height between the two bottles in millimeters, we need to convert the heights from centimeters to millimeters and then subtract one from the other.
First, we convert the height of the first bottle from centimeters to millimeters. Since there are 10 millimeters in a centimeter, we can multiply the height of 12 centimeters by 10 to get the height in millimeters:
12 centimeters * 10 millimeters/centimeter = 120 millimeters.
Next, we convert the height of the second bottle from centimeters to millimeters using the same conversion factor. We multiply the height of 15 centimeters by 10:
15 centimeters * 10 millimeters/centimeter = 150 millimeters.
Now that we have both heights in millimeters, we can calculate the difference. We subtract the height of the first bottle from the height of the second bottle:
150 millimeters - 120 millimeters = 30 millimeters.
Therefore, the difference in height between the two bottles is 30 millimeters.
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Articular discs are found in all of the following joints except the A. sternoclavicular. B. temporomandibular. C. tibiofemoral. D. vertebrocostal.
Answers
Articular discs are found in all joints listed except the vertebrocostal joint.
Articular discs, also known as menisci, are fibrocartilaginous structures that are found in various joints of the body. They serve to enhance joint stability, improve congruence between articulating surfaces, and distribute forces evenly during joint movement. The sternoclavicular joint (A), temporomandibular joint (B), and tibiofemoral joint (C) all have articular discs. The sternoclavicular joint allows movement of the clavicle and sternum, the temporomandibular joint facilitates jaw movement, and the tibiofemoral joint is the primary articulation of the knee. However, the vertebrocostal joint (D) does not have an articular disc. This joint connects the ribs to the thoracic vertebrae and functions to provide stability to the ribcage.
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which process is responsible for changing the frequency of alleles observed in the medium ground finch population?
Answers
The process that is responsible for changing the frequency of alleles observed in the medium-ground finch population is selective breeding.
Choosing parents with specific traits to breed with one another in order to generate kids with more desired traits is known as selective breeding. For thousands of years, humans have carefully bred a variety of animals and plants, including crop species that produce more.
Through artificial selection, several fruits and vegetables have been enhanced or even created.
Therefore, the correct option B.
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Full Question ;
Which process is responsible for changing the frequency of alleles observed in the medium ground finch population?
A
natural selection
B
selective breeding
C
genetic equilibrium
D
convergent evolution
Using both articles "Using Forests Wisely" and "Community Conservation" answer the following questions.
Summarize the scientific information that leads to conservation in each of the articles.
What social issues affected the problem or its solution in each of the stories?
How did economics delay scientists' first attempts at conservation in each story?
Describe the political actions that led to successful conservation in both stories.
Answers
"Using Forests Wisely" describes the importance of managing forests sustainably in order to preserve their ecological and economic benefits.
The article highlights scientific research on the role of forests in regulating water cycles, preventing soil erosion, and providing habitat for biodiversity. It also discusses the economic benefits of sustainable forestry, such as long-term timber yields and carbon sequestration.
How to explain the article?"Community Conservation" discusses the importance of involving local communities in conservation efforts in order to ensure their success. The article highlights scientific research on the effectiveness of community-based conservation in protecting biodiversity and preserving traditional knowledge and culture.
In both articles, social issues such as poverty and lack of education can affect the problem and its solution by making it difficult for local communities to participate in conservation efforts. Additionally, in "Using Forests Wisely" the article states that illegal logging and land clearance for agriculture are major drivers of deforestation, which undermines conservation efforts.
Economics also played a role in delaying scientists' first attempts at conservation in both stories. In "Using Forests Wisely", the article states that short-term economic incentives such as clear-cutting for timber often conflicted with the long-term benefits of sustainable forestry. In "Community Conservation" the article states that lack of funding and resources can make it difficult for community conservation groups to implement their plans.
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Biological polymers are often made using dehydration (or condensation reactions. During these dehydration reactions these occurs what happens?
Answers
During dehydration (condensation) reactions, biological polymers are formed by the removal of water molecules. This process links monomers together, forming covalent bonds between them.
Dehydration (condensation) reactions are chemical reactions that occur during the formation of biological polymers, such as proteins, carbohydrates, and nucleic acids. These reactions involve the joining of monomers to form larger polymer chains.
In a dehydration reaction, a water molecule is removed from the reacting molecules. One monomer provides a hydroxyl group (-OH), while the other monomer provides a hydrogen atom (-H). The hydroxyl group and hydrogen atom combine to form a water molecule, which is released as a byproduct. The remaining functional groups on the monomers then bond together, forming a covalent bond. This process hydrolysis is repeated as more monomers join the chain, resulting in the formation of a polymer.
The removal of water molecules in dehydration reactions allows the monomers to come closer together, facilitating the formation of covalent bonds. This bonding process is essential for the synthesis of biological polymers and contributes to the structural and functional diversity of biomolecules in living organisms.
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if chlorophyll did not work properly during the process of photosynthesis, how would this affect the plant's ability to make glucose?
Answers
Answer:
it would not turn green an nutrients would be lost because chlorophyll helps the plant with their food
Match the following structures with the correct letter.
A
B
C
D
E
Answers
Trishon placed a glass of ice cubes on the table The temperature inside the glass was 0°C Thirty minutes later the glass contained water and smaller ice cubes at a temperature of 4°C
Answers
Answer:c
Explanation:air transferred heat to the icee
Which of the following can lead to cancer?
A. a disruption in the cell cycle
B a cell entering the G0
C. A cell never leaving G0
D. The death of a cell
Answers
The option that can lead to cancer is a disruption in the cell cycle (option A).
What causes cancer?Cancer is a disease in which the cells of a tissue undergo uncontrolled (and often rapid) proliferation.
Cell cycle is the life cycle of eukaryotic cells from a quiescent beginning, growth, duplication of DNA followed by mitosis and division. The period of time in the cell cycle when nothing is happening is known as the G0 phase i.e. inactivity.
Cancer is a genetic disorder. It happens when genes that manage cell activity mutate and create abnormal cells that divide and multiply, eventually disrupting how the body works.
Therefore, disruption or alteration in the normal procedure of the cell cycle can lead to cancer.
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How does a plant grow in an overcrowded area
Answers
Answer: Nutrient Deficiencies
Explanation : Overcrowded plants must compete with each other for soil nutrients, which can result in increased fertilizer needs. Soil contains a finite amount of nitrogen and other necessary plant nutrients. The more plants there are in a small space, the more quickly these nutrients are used up.
What is a nucleosome?
A. a defensive layer that forms when the
cell is under attack
B. a structure that protects the nucleus
from extreme temperatures
C. genetic material formed from DNA and
histones
D. a structure that allows materials in and
out of the nucleus
Answers
Answer:
The answer is C.
Explanation:
Chromosal DNA is packaged inside microscopic nuclei with the help of histones
identify the important processes facilitated by chromosomal sequences in their roles at the molecular level.
Answers
For chromosome mobility to be facilitated, the chromosomes must compress during mitosis.
Chromosomes must compact in order for DNA to be able to replicate inside the nucleus.
Colchicine is a substance that is used to freeze the cells during the mitotic process in order to block or inhibit the movement of the chromosomes. Additionally, the faithful replication or transmission of the genome to those daughter cells depends on this mechanism. Cells divide during the interphase, however cell condensation is discovered to be taking place during the prophase. Chromosomes are permitted to travel prior to the mitotic process, and during this time, entanglements and breaks were also seen.
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State the law of conversation of energy. (Use scientific language)
Answers
Answer:
The law of conservation of energy, which is a fundamental principle in physics, states that energy cannot be created or destroyed, but it can be transformed from one form to another or transferred from one system to another.
This means that the total amount of energy in a closed system remains constant over time, and any energy lost by one part of the system must be gained by another part of the system. The law of conservation of energy applies to all physical processes, including mechanical, electrical, and chemical processes, and is a consequence of the time-invariance of physical laws.
It is a cornerstone principle in the study of thermodynamics and is crucial to our understanding of the behavior of the universe at the most fundamental level.
The law states that "Energy can neither be created nor destroyed adn can be only converted from one form to another."
Thus this means that the total amount of energy in the universe is constant and it cannot be created or destroyed it conly changes its forms.
For example, if we throw a ball from a height we convert its potential energy to kinetic energy. In this case all the potential energy is converted to its kinetic energy in a ideal system and thus no energy is destroyed or created.
Also in a motor vehicle the engine converts the chemical energy present in the fuel to mechanical energy of the car. It is a very important part of mechanics on whose bases many laws are formulated.
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Describe the three parts of a bone?
Answers
Bones actually have four main parts not three: the diaphysis, the distal epiphysis, the proximal epiphysis and the metaphysis.
the process of moisture being released from the leaves of trees and plants into air
Answers
Answer: Evaporation
Explanation:
Which is the easiest for scientists to measure evolution in?
Bacteria, because they reproduce so fast.
Humans, as we know the most about ourselves.
Elephants, because they reproduce so slow.
Bacteria because they reproduce so slow.
Answers
Answer: The easiest organism for scientists to measure evolution in is A. bacteria, because they reproduce so fast. Bacteria can reproduce asexually, meaning that one individual can produce offspring without the need for another individual. This allows for rapid population growth and genetic variation within a short period of time.
controversies aside, what supports the interpretation that parietal cortex neurons, which fire in a response to attention prior to a saccade to a target, are not simply issuing a premotor signal
Answers
The evidence that supports the interpretation that parietal cortex neurons, which fire in response to attention prior to a saccade to a target, are not simply issuing a premotor signal is the presence of spatial selectivity in their responses.
Parietal cortex neurons exhibit spatial selectivity, meaning they respond to specific locations in the visual field. This spatial selectivity suggests that their firing is not solely related to preparing for a motor response (saccade) but is influenced by attentional processes. If these neurons were only issuing a premotor signal, their firing would be expected to be independent of the location or features of the visual stimuli. However, studies have shown that parietal cortex neurons selectively respond to attended stimuli or stimuli within the neuron's receptive field, indicating their involvement in attentional processes.
Furthermore, the firing of parietal cortex neurons occurs prior to the execution of a saccade, suggesting that their role extends beyond simple motor preparation. This temporal relationship supports the idea that their activity reflects attentional engagement with the upcoming target rather than just issuing a premotor signal.
Taken together, the presence of spatial selectivity and the timing of their firing support the interpretation that parietal cortex neurons involved in attention and saccade preparation are not merely issuing premotor signals but are actively engaged in attentional processes.
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antibodies bind to specific antigens because of the three-dimensional shape of the variable regions. true or false
Answers
The statement "antibodies bind to specific antigens because of the three-dimensional shape of the variable regions." is True.
Antibodies are proteins produced by the immune system in response to the presence of antigens, which are foreign substances like viruses or bacteria. The variable regions of antibodies are responsible for recognizing and binding to specific antigens based on their three-dimensional shape.
This recognition and binding process is highly specific, meaning that each antibody can only bind to a particular antigen with a complementary shape.
The structure of antibodies is made up of four polypeptide chains, two heavy chains, and two light chains. The variable regions are located at the tips of the arms of the antibody, and they contain hypervariable regions or complementarity-determining regions (CDRs).
The CDRs are responsible for antigen recognition and binding, and they are highly diverse, allowing antibodies to recognize and bind to a wide variety of antigens.
Once an antibody binds to an antigen, it can neutralize or eliminate the antigen through a variety of mechanisms, such as blocking its entry into cells or triggering the destruction of the antigen by immune cells. This process is essential for protecting the body against infection and disease.
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A raccoon needs three fish a day to survive. A Fish needs 11 phytoplankton 1 point a day to survive. How much phytoplankton does a raccoon need to survive a day?
Answers
Answer:
33
Explanation:
if one fish needs 11, then you multiply 3 by 11, and that gives you 33.
From which hot spot would you view Polaris at an altitude of 45 degrees?
Answers
Answer:
Massena, New York
Explanation:
Polaris is most popularly known as the North star. It is also famous by the name of "Pole Star". It is the closet to the north celestial pole. At present it is the northern pole star currently.
It is found in the constellation of Ursa Minor. It is the one of the brightest star seen in the night sky. It is considered the star of the second magnitude which is situated close to the heaven's north pole.
The altitude of the Pole star or the Polaris when an observer is at the Tropic of Cancer is measured at 23.5 degree. While if the observer sees the Pole star at its zenith, the observer is located at the North Pole. i.e. 90 degree.
And the spot from where the observer views the Polaris at 45 degree altitude is Massena, New York.
what was the Mesozoic terrestrial reptile called that walked in an upright stance.
Answers
The Mesozoic terrestrial reptile that walked in an upright stance is called the dinosaur.
Dinosaurs are a group of reptiles that lived during the Mesozoic era, which is also known as the Age of Reptiles. They were the dominant terrestrial vertebrates for over 135 million years, until their extinction at the end of the Cretaceous period.
They were able to walk in an upright stance due to their skeletal structure and musculature that allowed them to support their massive bodies on two legs instead of four. Some examples of dinosaurs that walked on two legs include the T-Rex, Velociraptor, and Stegosaurus.
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1: What would happen if there were no villi on the walls of small intestine?
2: If you eat food while hanging upside down, do you think it will still go
through the alimentary canal?
3: Which food will take longer time to digest, Sugar candy or Potato chips?
Justify your answer
Answers
Answer:
Explanation:
1: What would happen if there were no villi on the walls of small intestine?If you don't have functioning intestinal villi, you can become malnourished or even starve, regardless of how much food you eat, because your body simply isn't able to absorb and make use of that food
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2: If you eat food while hanging upside down, do you think it will still go through the alimentary canal?Yes. Even if we eat food while hanging upside down, it will go through the alimentary canal because of the process of peristalsis. The muscles of the oesophagus will push the food downwards in a wave like action throughout the alimentary canal.
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3: Which food will take longer time to digest, Sugar candy or Potato chips?I think potato chips
City neighborhoods include many water-resistant surfaces such as roads, sidewalks, and driveways. These water-resistant surfaces can
prevent rainfall from penetrating the soil and ground. The rain is re-routed to storm drainsland most likely causes an increase in what
process?
O A runoff
OB. precipitation
OC. evaporation
OD. transpiration
Answers
Answer:
A: Runoff.
Reason: The other answers make no sense. precipitation: any liquid or frozen water that forms in the atmosphere and falls back to the earth. evaporation: the process of turning from a liquid into vapor. And transpiration: (of a plant or leaf) the exhalation of water vapor through the stomata.
It is the phenomenon of draining of rainwater back to the water bodies or lower lands.
The products of the structural genes of the trp operon are necessary for: the utilization of tryptophan for energy the biosynthesis of tryptophan the isomerization of tryptophan the inactivation of the repressor protein O all of the above
Answers
The products of the structural genes of the trp operon are necessary for the biosynthesis of tryptophan.
Production of tryptophan is regulated by trp operon in bacteria. Trp operon is expressed at the time of reduction of tryptophan level within the bacterial cell. Trp operon is regulated by trp repressor which is activated by the binding of tryptophan. It is a negatively regulated feedback loop. Trp operon consists of five genes trp E, D, C, B, and A. Attenuation mediates the regulation trp operon, which is a mechanism for lowering the expression of trp operon during high levels of tryptophan.
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The use of a vaccine to stimulate the immune system to act against a specific pathogen is valuable maintaining homeostasis because.
Answers
The use of a vaccine to stimulate the immune system to act against a specific pathogen is valuable in maintaining homeostasis because it helps to prevent diseases and infections from spreading throughout the body.
Vaccines introduce weakened or inactivated forms of pathogens or their components into the body, triggering an immune response without causing severe illness. This exposure enables the immune system to recognize the pathogen and produce specific antibodies and immune cells to target and eliminate it.
By stimulating the immune system, vaccines enhance the body's ability to defend against future infections by the same pathogen. This immune memory response allows for a faster and more robust reaction if the individual encounters the actual pathogen later on.
As a result, vaccines help maintain homeostasis by reducing the likelihood of illness and controlling the spread of infectious diseases within a population.
Furthermore, vaccines contribute to overall population health and well-being. By achieving high vaccination rates, herd immunity can be established, protecting individuals who are unable to receive vaccines due to medical conditions or age.
This collective immunity helps maintain a balanced and stable environment, limiting the transmission and impact of infectious diseases on a larger scale.
The use of vaccines in stimulating the immune system is crucial for maintaining homeostasis by preventing and controlling infectious diseases, promoting individual and population health, and establishing herd immunity to safeguard vulnerable individuals.
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Buren Company manufactures two products, Regular and Supreme. Buren's overhead costs consist of machining, $2,000,000; and assembling, $1,000,000. Information on the two products is: Regular Supreme Direct labor hours 10,000 15,000 Machine hours 10,000 30,000 Number of parts 90,000 160,000 Overhead applied to Regular using activity-based costing is Group of answer choices $860,000. $2,140,000. $1,800,000. $1,200,000.
Answers
As per the given question, the overhead applied to regular activity-based costing is $860,000.
To calculate the overhead applied to Regular using activity-based costing, follow these steps:
1. Determine the total overhead costs: Machining = $2,000,000, Assembling = $1,000,000. Total overhead = $3,000,000.
2. Calculate the cost drivers: Direct labor hours = 25,000 (10,000 for Regular + 15,000 for Supreme); Machine hours = 40,000 (10,000 for Regular + 30,000 for Supreme); Number of parts = 250,000 (90,000 for Regular + 160,000 for Supreme).
3. Allocate overhead costs to cost drivers: Machining = $2,000,000 / 40,000 machine hours = $50 per machine hour; Assembling = $1,000,000 / 250,000 parts = $4 per part.
4. Calculate the overhead applied to Regular: Machining = 10,000 machine hours x $50 per machine hour = $500,000; Assembling = 90,000 parts x $4 per part = $360,000.
5. Add the overhead costs for Regular: $500,000 (machining) + $360,000 (assembling) = $860,000.
The overhead applied to Regular using activity-based costing is $860,000.
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10. What aspect of meiosis best explains Mendels law of independent assortment? a. selective removal of genetic information to create haploid gametes b. separation of homologous chromosomes during Meiosis I c. random alignment of different bivalents during Meiosis I d. transmission of genes together when they lie nearby on the same chromosome e. separation of identiqal alleles during Meiosis II
Answers
The correct answer is c. The random alignment of different bivalents during Meiosis I best explains Mendel's law of independent assortment.
This is because during meiosis, homologous chromosomes pair up and form bivalents. These bivalents then align randomly at the metaphase plate during meiosis I. This means that the way in which one bivalent aligns does not affect the alignment of another bivalent. As a result, the alleles on different chromosomes are inherited independently of each other, following Mendel's law of independent assortment.
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The sum of forces on a 10 kg object is 50 N. calculate it's acceleration.
10 \frac{m}{s^{2}}
s
2
m
5 \frac{m}{s^{2}}
s
2
m
Answers
Answer:
5ms^-2Explanation:
Acceleration =force/mass
given mass =10kg
and
force=50N
Acceleration due to gravity=50N/10kg
=5ms^-2
an increase in the permeability of the cells of the collecting tubule to water is due to a(n) . group of answer choices decrease in the concentration of the blood plasma increase in the production of aldosterone increase in the production of adh decrease in the production of adh
Answers
An increase in the permeability of the cells of the collecting tubule to water is due to an increase in the production of ADH (antidiuretic hormone).
ADH is produced by the hypothalamus and released by the pituitary gland in response to changes in blood volume or concentration. ADH acts on the cells of the collecting tubule in the kidneys to increase their permeability to water, allowing more water to be reabsorbed into the bloodstream. This helps to regulate the water balance in the body and maintain proper hydration levels. Conversely, a decrease in the production of ADH would result in decreased permeability of the cells of the collecting tubule to water, leading to increased water loss in the urine and potential dehydration. Because it is important to provide enough information to fully explain the concept of permeability and how it relates to ADH production and the collecting tubule.
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