The graphs below show the changes in crab color at one beach from 1950 to 1990.

The change in crab color is an example of which type of evolution?

O A. Stabilizing selection, because one crab color was preferred over other colors.

O B. Stabilizing selection, because two crab colors were preferred over other colors.

O C. Directional selection, because two extreme colors were preferred over the more moderate color.

O D. Disruptive selection, because two extreme colors were preferred over the more moderate color.

O E. Adaptive radiation, because crabs of a single color evolved to form crabs of several colors.

Decreasing first and then growing happening to the population because at every year 10.20 percent population is growing.

The net reproduction rate (r) is computed as follows: r = (births-deaths)/population size, or simply multiply by 100 to get in percentage terms. Because the population has grown so much, many more people have been added. When a population grows at a steady rate year after year, this is referred to as exponential growth.

Migration is the the number of immigrants minus the number of emigrants over a given time period, divided by the number of person-years lived by the receiving country's population during that time period. It is calculated as the number of net migrants per 1,000 people.

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The Endocrine and Central nervous systems are the major control systems for regulating homeostasis.

-Homeostasis is the ability to maintain internal stability in an organism in response to the environmental changes.

-In this the hypothalamus maintains homeostasis, regulating metabolism, reproduction, eating and drinking behaviour, energy utilization, osmolarity and blood pressure.

-Most control systems maintain homeostasis by a process called negative feedback.

-Negetive feedback is a mechanism in which the product of a reaction leads to a decrease in that reaction.

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Four

The rungs of the DNA ladder made of four types of nitrogenous bases. These are Adenine (A), Guanine (G), Cytosine (C) and Thymine (T).

Answer:

the higher the frequency and the higher amplitude, the more energy there is.

Explanation:

waves carry energy uh The higher the frequency, the shorter the wavelength. The relationship between wavelength and frequency is called an inverse relationship, because as the frequency increases, the wavelength decreases.

The maximum time a person could listen to a sound of 87 decibels is: 8 hours

Decibels can be defined as the unit used by scientists to measure sound level.The values of Decibel ranges from a very low value to a very high value and the higher we get the more dangerous it is to our human ear.

In conclusion, The maximum time a person could listen to a sound of 87 decibels is 8 hours

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The most likely genotypes of the parents are Aa, Aa.,the parents genotypes will most likely be homozygous.

The alleles or variations that an individual possesses in a given gene or genetic location are referred to as genotype.

Because the alleles in the pair are the identical,both dominant or both recessive, the word "homozygous" is used to characterize the pairings "AA" and "aa."

In a genetic cross, one hundred and twenty offspring are tallied. Ninety appear to have the dominant phenotype, whereas thirty appear to have the recessive phenotype.

Hence,the parents' genotypes will most likely be homozygous ("AA" and "aa.")

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There is competition among species when they jostle for scarce resources.

The term competition has to do with a situation in which members of the same species scramble for scarce resources.

The following are the definitions of the types of competition;

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Answer:  

Individuals do not compete directly

for resources, but are prey for the

same predator.- apparent competition

Individuals interact indirectly while

competing for common resources.- exploitation competition

An individual directly interacts and

changes the way, other individuals

attain resources.-- interference competition

Explanation: I'm 100% right, you will see!

Based on the hypothesis (Big Bang theory) that the universe is expanding, an analysis of light wave would indicate: A. a decrease in frequency and a red shift.

A redshift can be defined as a displacement (shift) of the spectral lines of an astronomical (celestial) object toward longer wavelengths and a corresponding decrease in frequency, as a result of the Doppler effect.

Basically, a redshift occur when observing an astronomical (celestial) object from planet Earth because it's receding (moving away) from planet Earth.

In conclusion, we can infer and logically deduce that an analysis of light wave would indicate a decrease in frequency and a red shift based on the hypothesis (Big Bang theory) that the universe is expanding.

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It is a a true statement that; Sustainability can be achieved through careful resource management.

The term sustainability has to do with the ability to utilize resources in a way that they are not quickly depleted or degrade the environment. Sustainability is the reason behind all environmental conservation efforts of governments around the world.

It is a a true statement that; Sustainability can be achieved through careful resource management.

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Answer:

It is True.

Explanation:

The diaphragm in the diagram below is a muscle that contracts during inhalation. thus option A is correct option.

The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily.

Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

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Answer:

i think A: atmosphere is the ans

The Arctic Ocean can be considered a fundamental part or player of the hydrosphere (Option D).

Hydrosphere refers to all water bodies present on the Earth, including oceans such as the Arctic Ocean.

This part of Earth (hydrosphere) plays a fundamental role in the homeostasis or state of equilibrium of the ecosystems.

In conclusion, the Arctic Ocean can be considered a fundamental part or player of the hydrosphere (Option D).

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The Foucault Pendulum show that the Earth rotates because the pendulum would swing so slowly that it would appear to change direction as the Earth moved away.

The Foucault pendulum was able to demonstrate experimentally that the Earth revolves around itself with an angular velocity Ω, in a period of 23 hours, 56 minutes and 4 seconds.

Thus, Foucault knew that the longer the string attached to the weight, the slower the swing of his pendulum. He could attach the string above to an almost frictionless pin, and if he used a very large weight, the pendulum would swing so slowly that it would appear to change direction as the Earth moved away.

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Victim can be accomplished with as few as two lifeguards is fiest step when performing the pool edge technique for rapid extrication as the primary in water rescuer completes in water rescue breathing

To remove a victim, the primary guard who performed the rescue pushes the victim to the side and transfers the victim to a waiting guard on deck.

The person is forced to face the pool's side while their head is protected and their face is kept out of the water (and their airway open if they are unconscious). The main guard exits the pool, grabs the backboard, and lowers it straight into the water.

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Carbon and oxygen are essential substances for life on earth through the process of photosynthesis.

Photosynthesis is a process carried out by photosynthetic autotrophic organisms such as plants, algae and some prokaryotes. They capture sunlight, transform it into chemical energy and produce organic compounds from water and carbon dioxide.

It can be summarized as the process of transforming light energy into chemical energy. The term photosynthesis means synthesis by light.

In addition to photosynthesis, they have other cycles that carbon and oxygen are part of, such as combustion and respiration.

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Photosynthesis is the biological process containing carbon or oxygen.

Photosynthesis is the method in which green plants utilise sunlight to create their own food.

Photosynthesis is essential for life on Earth. Without it there would be no green plants, and without green plants, there would be no creatures Interactive. Photosynthesis needs sunlight, chlorophyll, water, and carbon dioxide gas.

Thus, Photosynthesis is the answer.

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Arms of the chromosome are unproportioned, with extra or missing genetic material is the change to the chromosome causes Robertsonian translocation. Thus, the correct option is D.

Acrocentric chromosomes are affected by a Robertsonian translocation. The narrow region where both halves of an acrocentric chromosome unite lies at the end of the chromosome in an acrocentric chromosome.

Acrocentric chromosomes fuse together in a Robertsonian translocation. Two "long arms" of DNA are fused together in this process. Because the ends of their short arms have comparable repetitive DNA sequences that predispose them to fusion, only chromosomes 13, 14, 15, 21, and 22 are involved in this form of translocation.

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Answer:

dddddddddddddddddddddddd

Explanation:

dddddddddddddddddd

The number of sunflower sprouts will be higher than birch tree sprouts because sunflower sprouts have a higher growth rate than birch tree sprouts.

Growth rate refers to the ratio of development of a given population and/or biological structure.

The growth rate may result very useful in ecology studies as above mentioned (ecological succession).

In conclusion, the number of sunflower sprouts will be higher than birch tree sprouts because sunflower sprouts have a higher growth rate than birch tree sprouts.

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Answer:   The number of sunflower sprouts is greater than the number of birch tree sprouts in both groups because sunflowers have a faster growth rate than birch trees.

Explanation:

Answer:

Their sunny equatorial position on the globe combined with their location amid the cool Humboldt and Cromwell ocean currents allows these special islands to display a strange mix of both tropical and temperate environments

Explanation:

I believe this is correct :')

To write a diary about a journey through the Silk Road, we must take into account all the aspects that we experience daily on this journey.

A diary is a written resource that was used in ancient times to make a daily written record of a trip, crossing or territorial discovery.

In general, diary are primary information resources that allow us to know very precisely how past events unfolded.

To write a diary about a journey through the Silk Road, several aspects must be taken into account, such as the different cultures with which the merchants had to interact.

Additionally, we must take important aspects into account such as the location and the date on which we write that diary, for example:

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The total amount that was spent on Veterans’ Benefits is 233.78 billion U.S. dollars.

According to the Veterans Benefits Administration, Spending for the disability program is increased about quadrupled from $22 billion in 2000 to $85 billion in 2019. The total spending on Veterans’ Benefits is 233.78 billion U.S. dollars.

So we can conclude that The total amount that was spent on Veterans’ Benefits is 233.78 billion U.S. dollars.

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Answer:

$160.63 billion

Explanation:

plato/edmentum

Aerial coverage is the limitation of the Rovs that occur due to its large length.

A major disadvantage of using ROVs for deployment of the sensor is that it is generally 500–1000 m long so due to its high length, it limits the aerial coverage.

So we can conclude that aerial coverage is the limitation of the Rovs that occur due to its large length.

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Answer:

D. the population must be indefinitely large

The following statements best describes a mechanism similar to how liposomes work is a) water molecules passing through an aquaporin.

The number one characteristic of maximum aquaporins is to move water throughout cell membranes in reaction to osmotic gradients created via way of means of lively solute transport. A liposome includes a area of aqueous internal a hydrophobic membrane.

The motion of water thru the aquaporins is pushed via way of means of osmotic gradients. For example, crimson cells dropped into seawater will reduce due to the fact water leaves the cells; crimson cells dropped into sparkling water will swell and explode for the reason that water enters the cells.

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landfills are a factor in global warming. A greenhouse gas they create is methane. human-related greenhouse gas emissions. Leaks form natural gas systems or the raising of cattle are two human activities that release methane.

This warming is a result of human activities, particularly the burning of fossil fuels, which raises the levels of heat-trapping greenhouse gases in the atmosphere.

Yes. However, by lowering human emissions with heat-trapping gases plus soot (also known as "black carbon"), we may limit the amount the global warming and moderate its rate.

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Cleveland drinking water is treated to ensure safety before its consumption (this process involves the removal of debris, flocculation, etc).

Water treatment refers to the strategies aimed at enhancing water quality to be consumed and/or used in agriculture.

Cleveland water experience a complex process that involves the removal of debris, flocculation, filtration, etc.

In conclusion, Cleveland drinking water is treated to ensure safety before consumption (this process involves the removal of debris, flocculation, etc).

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When the BEAN plant is observed with a hand lens, it was observed that there were more than 6 root nodules; option D.

Root nodules are nodules found on the root leguminous plant wherein nitrogen-fixing bacteria live which help in fixing atmospheric into the soil.

A hand lens is a magnifying lens which is used to view and enlarge the size of small objects.

A bean plant is a leguminous plant.

Using a hand lens to observe a bean plant will show the presence of root nodules.

Therefore, when the BEAN plant is observed with a hand lens, it was observed that there were more than 6 root nodules; option D.

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