Question 3 of 10
How does natural selection lead to evolution?
A. Every generation is a new species.
O B. Many small changes can create a whole new species.
O C. An organism always has the same traits as its parent.
D. Adapted traits cannot be passed to offspring.
SUBMIT

Answer: A

Explanation:

The electric potential at a point on the axis of the annulus a distance z from its center is given by:  \(V = kQ / (2z) * sqrt(r^2 + z^2) / (2π)\)

To exploit the angular symmetry of the problem, we can consider a circular ring of radius r and thickness dr, with charge density λ. The potential dV at a point P on the axis of the ring, at a distance z from the center of the ring, due to a small element of charge dq on the ring is given by:

\(dV = kdq / sqrt(r^2 + z^2)\)

where k is the Coulomb constant.

We can express the charge density λ in terms of the total charge Q on the ring and the circumference C of the ring as:

λ = Q / C = Q / (2πr)

Substituting this expression into the equation for dV and integrating over the entire ring, we get:

\(V = ∫dV = kQ / (2π) ∫dr / sqrt(r^2 + z^2)\)

To evaluate the integral, we can make the substitution \(u = r^2 + z^2, du = 2rdr,\)  to obtain:

\(V = kQ / (4πz) ∫du / sqrt(u) = kQ / (4πz) * 2sqrt(u) = kQ / (2z) * sqrt(r^2 + z^2) / (2π)\)

Therefore, the electric potential at a point on the axis of the annulus a distance z from its center is given by:

\(V = kQ / (2z) * sqrt(r^2 + z^2) / (2π)\)

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First, the solubility of oxygen decreases as temperature increases ¹. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water.

Answer:

Trees provide shelter and abundant food supplies

Answer:

Trees provide shelter and abundant food supplies.

Explanation:

Living Trees

Trees support the lives of many large organisms. Trees are used for food, shelter, and sites for reproduction. Many animals also use trees for resting, nesting, and for places from which to hunt or capture prey.

The similarities between the growth of the human population and that of plants and animals can be seen in the fact that in all three instances.

With respect to the original number of specimens, the increase happens exponentially.

If there are 100 humans and 50 of each gender, then it is possible for 50 additional people to appear;

Animals and plants both reproduce exponentially compared to the procreative couples that were previously there.

Due to the encouragement of apical dominance and the subsequent induction of barrenness, a high plant population ultimately results in a reduction in the number of ears produced per plant of maize. Plant populations should constantly remain at their ideal levels.

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Heliocentric model  represents the copernican model that is most similar to that of Aristarchus

Aristarchus of samos was an ancient greek astronomer who proposed that the Earth revolves round the Sun, suggesting a heliocentric model of the solar system. However, his model did not gain widespread acceptance during his time and the geocentric model prevailed for many centuries.

The heliocentric model later reintroduced and developed by NIcolaus Copernicus in the 16th century. Heliocentric model placed the sun at the center of the solar system, with the planets, including Earth, orbiting around it.

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Three disadvantages of cloning.

The process of cloning is described as follows:

A nucleus and an egg cell come from a body cell of animal A with its nucleus removed comes from animal B.

An enucleated egg cell from animal B is taken and the nucleus is removed.

The nucleus with DNA from animal A is placed in the enucleated egg cell from animal B.

The cell from animal A with its DNA develops into an embryo.

The embryo develops into a baby animal that is a clone of animal A.

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Answer:

The transmission of characteristics from parents to offspring is called heredity.

Explanation:

The traits (such as eye color, hair color, and skin color) are passed in the form of genes (segments of DNA corresponding to particular traits), which are considered the unit of heredity.

The burning of coal to generate has been good in some ways and bad in others. The electricity has allowed for an improvement in many areas of life but the burning of coal is also responsible for a great deal of pollution.

Pollution problem is solved through the use of new technology such as carbon capture and storage, high-efficiency, low-emissions coal-fired power plants, and renewable energy sources such as solar, wind, and hydroelectric power.Carbon capture and storage is a process that captures carbon dioxide emissions from sources such as coal-fired power plants, transports them to a storage site, and stores them permanently underground.

Carbon capture and storage technology is an important tool in reducing greenhouse gas emissions and mitigating climate change.High-efficiency, low-emissions coal-fired power plants are designed to produce electricity with less coal and fewer emissions than traditional coal-fired power plants. These power plants use advanced technologies to improve the efficiency of the combustion process and reduce the amount of greenhouse gas emissions produced.

Renewable energy sources such as solar, wind, and hydroelectric power produce electricity without burning fossil fuels, so they do not produce greenhouse gas emissions or contribute to climate change. These sources of energy are becoming increasingly popular as the technology advances and the cost of producing electricity from renewable sources continues to decrease.

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Answer:

the functional groups found in fatty acids are the carboxyl group (-COOH) and the hydroxyl group (-OH).

Answer:

5' TACGTAACT 3'

Explanation:

Complementary strands.

The mRNA sequence A U G C A C G C A U G A translates to the sequence of amino acids methionine-histidine-alanine-methionine.

To determine the sequence of amino acids specified by the mRNA sequence A U G C A C G C A U G A, we can refer to the codon chart (also known as the genetic code chart) which provides the correspondence between mRNA codons and the amino acids they encode.

Using the chart, we can break down the given mRNA sequence into its corresponding codons:

AUG - CAC - GCA - AUG - A

Starting with the first codon, AUG, we find that it codes for the amino acid methionine (Met). Moving to the next codon, CAC, it corresponds to the amino acid histidine (His). The third codon, GCA, codes for the amino acid alanine (Ala). The fourth codon, AUG, again encodes methionine (Met). Lastly, the final codon, A, does not specify an amino acid and serves as the stop codon, indicating the end of protein synthesis.

Therefore, the sequence of amino acids specified by the given mRNA sequence is: Met - His - Ala - Met.

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Answer:

D. HINDE KO MA GETSシ︎

Explanation:

シ︎❀シ︎❀シ︎❀シ︎❀シ︎❀シ︎❀シ︎

The number of primary consumers would increase when sunlight is reduced.

It is a small shallow area filled with stagnant fresh water.

It is a community including biotic (plants, animals, microorganisms) and abiotic components in a pond.

It is a variable that is present in a specific quantity and has the ability the keep the ecosystem in check.

Sunlight, carbon dioxide, nutrients, and space can all be limiting factors in the pond ecosystem.

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A geologic feature with at least three layers that demonstrates the principle of lateral continuity is called a Grand Canyon.

According to the lateral continuity concept, sedimentary rock strata were formerly continuous over wide areas. As a result, any layer discontinuities must be the result of erosion or other geologic processes.

The layers in this sketch are continuous laterally, which means they extend in all directions while holding onto their thickness and makeup. We can presume that the layers go farther in all directions even though we can only see a small section of them in this sketch. This is significant because it enables geologists to link the age and make-up of distinct rock layers.  

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The cell density (cells/mL) = 15× 10^6 cells per mL.

The doubling time of culture = 2 hours

The cell density after 2 hours = 3 x 10^6 cells per mL

Since the dilution did not affect the lag phase and exponential growth rate, the cell density after 10 hours is calculated below:

2 hour = 3 x 10^6 cells per mL

10 hours = X

Cross multiply,

\(x = \frac{10 \times 3 \times10 {}^{6} }{2} \)

\(x = \frac{30 \times 10 {}^{6} }{2} \)

X= 15× 10^6 cells per mL

Therefore, the cell density in (cells/mL) after 10 hours = 15× 10^6 cells per mL.

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Answer:

the the climax of the night

Answer:

Raynaud causes you to have episodic spasms, called vasospastic attacks, in response to cold temperatures or stress.

Explanation:

During a Raynaud's attack, the arterioles and capillaries in your fingers and toes tighten more than they should. As a result, your skin in the affected area turns white and then blue

The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.

The stages of bee development are:

1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.

2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.

3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.

4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.

It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.

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Social fulfillment in the three pillars of sustainability requires equity, justice, and the satisfaction of human needs.

In the context of sustainability, social fulfillment encompasses ensuring equity, justice, and meeting the basic needs of individuals and communities. The three pillars of sustainability—environmental, economic, and social—are interconnected and rely on each other for long-term success.

It emphasizes the importance of balancing economic growth and environmental protection with social progress to create a more equitable and just society for present and future generations.

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Answer:Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed.

Explanation:

Answer:

I believe A. is the answer

Explanation:

Answer:

Because she likes Carl.

Answer:

c)dense connective

Explanation:

Answer:

c) dense connective

Explanation:

Answer:

False

Explanation:

Anhydrase is an enzyme in erythrocytes essential for the transport of carbon dioxide as bicarbonate ions.

Answer:

false

Explanation:

The image represents air masses colliding with each other, leading to rapid changes in weather conditions.

The image represents the process of rapid changes in weather conditions occurring. The arrows in the image indicate various elements and phenomena related to these changes.

At the top, the final answer is that the image represents "Air masses are colliding with each other."

1. The arrow labeled "Direction of frontal movement" points right toward the "Cold front" map symbol. This indicates the movement of a cold front.

2. The arrow labeled "Rising warm air in front of cold front" points from the cold front upward into the sky. This signifies the upward movement of warm air.

3. The image also shows the development of clouds due to the upward movement of warm air. This indicates the presence of moisture in the atmosphere.

4. Finally, the image depicts advancing cold air behind the cold front, indicated by an arrow. This cold air is moving in the direction of the warm air.

Putting all these elements together, we can conclude that the image represents air masses colliding with each other. The cold front is advancing and pushing against the warm air, leading to the formation of clouds and changes in weather conditions. This collision between air masses often results in rapid changes in weather patterns, such as storms, rain, or temperature fluctuations.

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Answer:

Explanation:

Core, mantle, and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid solid.

The option that correctly describes the compositional layers of the earth is : ( D ) Some layers of the earth are liquid, and some are solid.

The earth is composed of the Core, mantle, and crust which are categorised based their varying composition. The crust consists of the oceanic crust and continental crust. WhileThe lithosphere is composed of both the crust and the portion of the upper mantle which are similar to brittle rigid solid.

Hence we can conclude that The option that correctly describes the compositional layers of the earth is Some layers of the earth are liquid, and some are solid.

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