Natural selection is the changes of the size and shape of living things in nature.
What do you mean by Natural selection?Natural selection may be defined as favorable variations through which organisms are better adapted and survive in the environment.
Natural selection is an agent of evolution. It is the component that forces the species to change and diverge from its parental species over a period of time.
It may alter the size as well as the shape of living organisms according to their need in nature for survival.
Therefore, natural selection is the changes of the size and shape of living things in nature.
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Facilitated diffusion is a type of
passive transport, which means it
does not require energy.
Which of the following is an
example of facilitated diffusion?
A. liquid molecules colliding
B. plants bringing nutrients into their roots
from the soil
C. protein channels embedded in the cell
membrane
D. the sodium-potassium pump actively
bringing sodium and potassium into the cell
Answer:
B
Explanation:
The plant doesn't use energy to bring nutrients into the roots. The concentration of nutrients is higher in the soil than in the root, so they passively move into the root to make the concentrations equal.
If deer are not hunted legally every season, a potential result is? 100 POINT QUESTION BETTER GET IT RIGHT
1)the predator population will decrease
2)the smaller herbivore population will decrease.
3)the plant population will increase.
4)the deer population will decrease.
Answer:
if we don't kill deer there would be a increase in population and a decrease in the food they eat so number 2 is correct
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can hydrochloric acid activate pancreatic lipase?
How is alpine tundra different from Arctic and Antarctic tundra?
Alpine tundra plants are not adapted to conserve water.
Alpine tundra is much colder than the Arctic and Antarctic tundra.
Alpine tundra areas are found only at high elevations.
There are trees in the alpine tundra but not in the other kinds of tundra.
Answer:
Alpine tundra areas are found only at high elevations.
Explanation:
The arctic tundra is a specific region that covers the northernmost parts of the world from the north pole and extending south, whereas alpine tundra are found across the world at high altitudes.
Answer:
Alpine tundra areas are found only at high elevations.
Explanation:
A classmate tries to argue that this result is because the butterfly wings must have absorbed the colors.
Explain to them how gene expression played a role in the butterflies phenotypes.
The expression of certain genes at different levels may cause color variation in the butterfly wings.
What is gene expression?Gene expression is the cellular process associated with the transcription of certain genes in particular cell types.
In this case, the trait color in butterfly wings is associated with the differential expression of certain genes during development.
The variation in color may be due to the expression of different alleles in butterflies or the same allele at different levels.
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Typical plant fats, such as sunflower oil and corn oil, are _______ in form and _______ in polyunsaturated fatty acid content (Choose the best combination of terms for the respective characteristics)
Answer:
Typical plant fats, such as sunflower oil and corn oil are Liquid in form and High in polyunsaturated fatty acid content.
Explanation:
what means to divide a material into its various parts?
Answer:
It means to analyze, dissect, and break down means to divide a complex whole into its parts or elements.
Explanation:
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consider the two individuals that have the following genotypes: CCDd and Ccdd. Predict the outcomes of a cross for these two individuals. What are the outcomes that could occur in the offspring. Select all that apply
Answer:
CCDd 25%
CCdd 25%
CcDd 25%
Ccdd 25%
Explanation:
what should joy do to control mosquitoes at home
Answer:
Make a fire in firepit
Explanation:
the
Diffusion of substances occurs ___ the concentration gradient.
Answer:
high concentration to low concentration
Explanation:
particles bounce off of eachother and through probability the higher amount of concentrated particles the more likely for them to bounce and move to an area of low particle count
Why is it important for a cell to control what enters and leaves its structure?
Answer:
If a cell can't control what enters and leaves its structure, harmful and foreign substances can get into the cell and obstruct cell activity.
Explanation:
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The cell is covered by the cell membrane, which makes the boundary, and allows only selected materials to enter the cell or exit the cell because some material is harmful to the cellular function.
How do cells selectively accept the material?In cells having a membrane that is selectively permeable, no molecule is enter or lives in the cell. It has several protein transporters which allow the molecule to enter the cell, this maintains the cell's function.
Some inhibitors and toxic materials are responsible to inhibit general cellular functions, like metabolism, and DNA synthesis. Metabolism products made by the cell are necessary and do not allow to escape from the cell.
Therefore, for the proper functioning of the cell, it maintains to allow selective permeability of the membrane.
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Which of the following is a signal from the environment?
a
OA stimulus
O B.
response
O C.
reflex
OD. instinct
Answer:
A. Stimulus
Explanation:
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Vitamins can readily be destroyed during processing because they ________. a. are precursors. b. contain nitrogen c. are organic d. support growth e. support digestion
The reason why vitamins can be readily destroyed during processing is that vitamins are organic components.
What is the meaning of organic?In chemistry, the word organic is used to refer to compounds that contain carbon.
How does this affect vitamins?One of the main effects of vitamins being organic components is that they can be easily destroyed as carbon can react with many different substances.
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What would occur if the anthers were removed from a flower?.
Answer:
The flower would not be able to pollinate by itself.
Explanation:
The function of the anther is to produce pollen
The Coriolis effect causes surface ocean currents to _____.
bend and curve around the planet
move more quickly than deep ocean currents
flow in straight lines between the poles
sink toward the ocean floor, then rise again to the surface
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Answer:
A! A!B! THE ANSWER IS THAT THERIS NO MORE
Why does physarum polycephalum branch out like a plant or fungus?
Answer:
Physarum first grows as single-celled amoebae, but the amoebae fuse, and the organism loses its 'cellular' makeup. As the organism continues to grow, nuclei divide without cell division. The resulting bag of nuclei is called a 'coenocyte' or 'plasmodium'.
Explanation:
The formation of dermal bones begins when aggregated mesenchymal cells differentiate and begin producing osteoid. These aggregations where bone formation gets started are known as _____________.
Any sensory neuron detects stimuli within an area called its ____________ field.
Receptive field is a region where sensory neuron detects stimuli within an area.
What is receptive field?.The receptive field of a neuron is the part or region in any organ system within that help to in stimulation of neurons which can affect the the electrical response of the neursons.
Examples of receptive field are found in cochlea of auditory system, visual system, skin, tongues and so on.
Therefore, Receptive field is a region where sensory neuron detects stimuli within an area.
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What are differences between cattle and human respiratory systems?
Explanation:
Humans have lungs, cows have lungs, and whales have lungs along with many others. However, not all animals use lungs to breathe. Fish use gills to breathe. However, not all fish use, or have to use gills
Which characteristics belong to angiosperms? Select four options.
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A vascular tissue
B roots
C fruits
D cones
E flowers
This male fiddler crab is waving his claws to attract a female. what type of behavior is this? question 29 options: defense survival learned inherited
This male fiddler crab is waving his claws to attract a female, This is inherited, Option D. This is further explained below.
What is an inheritance?Generally, inheritance is simply defined as the transmission of genetic traits from parents to children.
In conclusion, The female attraction technique is an inherited attribute,
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Which of the following is the approximate projected rate of change in renewable energy consumption from 2010-2040?
A. 4.33 quadrillion BTUs per year
B. 2.33 quadrillion BTUs per year
C. 2.00 quadrillion BTUs per year
D. 0.733 quadrillion BTUs per year
2.33 quadrillion BTUs per year is the projected rate of change in renewable energy consumption from 2010-2040.
What is Renewable energy?These type of resources are usually replenished from time to time through natural occurrences and examples include water, wind etc.
The approximate projected rate of change in renewable energy consumption from 2010-2040 is however 2.33 quadrillion BTUs per year.
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Answer:
2.33 quadrillion BTUs per year
Explanation:
The answer is 2.33 quadrillion BTUs per year
i need some help w this
Why does it make good metabolic sense for phosphoenolpyruvate carboxykinase, rather than pyruvate carboxylase, to be the primary target for the regulation of gluconeogenesis at the level of control of enzyme synthesis?.
Because oxaloacetate is required by the body for other metabolic pathways, it is best to regulate gluconeogenesis at the level of synthesis of phosphoenolpyruvate carboxykinase.
What is metabolic regulation?Metabolic regulation refers to the various mechanisms employed by the cells and tissues to regulate metabolic activities in the body.
One form of metabolic regulation is gene expression regulation.
Phosphoenolpyruvate carboxykinase converts oxaloacetate to phosphoenolpyruvate while pyruvate carboxylase converts pyruvate to oxaloacetate.
Since oxaloacetate is required by the body for other metabolic pathways, it makes sense to regulate gluconeogenesis by regulating level of synthesis of phosphoenolpyruvate carboxykinase.
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Traits that are controlled by several sets or pairs of alleles, such as skin color and height in humans, are the result of what form of inheritance?.
Polygenic inheritance occurs when a trait is controlled by several pairs of genes, traits such as skin color and height in humans are the result of it.
What is polygenic inheritance?It is used to refer to the inheritance of quantitative traits that occurs when a character is due to the action of more than one gene that may also have more than two alleles.
That is, it occurs when a characteristic is governed by two or more sets of alleles, there are traits, such as weight, skin color, height, which are governed by the cumulative effect of many genes.
Therefore, we can conclude that polygenic inheritance occurs when a trait is controlled by several pairs of genes, traits such as skin color and height in humans are the result of it.
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what's the factor that determines the type of vision of animals ??
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25. Although three different butterfly species all
inhabit the same flower garden in an area,
competition between the butterflies rarely
occurs. The most likely explanation for this
lack of competition is that the butterflies
Gre
(1) occupy different niches
(2) have a limited supply of food
(3) share food with each other
(4) are able to interbreed
Answer:
1. Occupy different niches
Some scientists would say that nucleic acids are
the most important molecules in living cells;
others might suggest that proteins are more
important; and some might say that life could
not continue without a supply of carbohydrates.
Write a sentence in support of each of these
points of view.
Answer:
In my pov:The nucleic acids are the most important molecules in living cells beacuse It is the macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell. The proteins are more important because Our body needs protein to stay healthy and work the way it should. More than 10,000 types are found in everything from your organs to your muscles and tissues to your bones, skin, etc. Protein is also a critical part of the processes that fuel your energy and carry oxygen throughout your body in your blood.The life could not continue without a supply of carbohydrates beacuse Carbohydrates are important to the daily lives of living organisms. They store energy (starches), provide energy for cells (glucose), and provide structure to plants and some animals.b. Describe how an effort to preserve a species of elephant could affect an area where elephants have been hunted extensively. (0.5 point)
The kidneys help regulate blood pH by excreting ___________in the urine and by reabsorbing _____________.
Answer:
The kidneys help maintain the acid–base balance by excreting hydrogen ions into the urine and reabsorbing bicarbonate from the urine