In order for natural selection to occur, there must be variation within the population. Which statements are an accurate reflection
of the relationship between natural selection and variation in the population? Select ALL that apply.
A)
Mutations are caused by natural selection.
B)
Mutations are a source of variation within any population.
Genetic variation is increased in populations with sexual reproduction.
D)
Genetic diversity is decreased overall by the mechanism of natural
selection
E)
Natural selection lowers the population size but maintains the genetic
variation in a population.

Answer:

An understanding of biology can help you make choices and decisions that affect your health. Biologists and other scientists research environmental issues such as pollution, biodiversity,land conservation, and natural resource use.

Explanation:

Hope this helped Mark BRAINLIEST!!!

Answer: The organism that has the adaptations described that enable it to survive in the tundra is the POLAR BEAR.

Explanation:

ADAPTATION is defined as the process by which an organism becomes fitted to its environment thereby enabling the organism to live successfully and reproduce.

In any population, an organism is able to survive if it has features that help them to fit and compete successfully in that environment.

From the question, a typical example was given concerning the POLAR BEAR (Ursus maritimus) and it's best fitted environment which is the tundra.

The tundra is a type of biome that is treeless marshy vegetation which is composed mainly of dwarf shrubs. It's has a cold climate (Arctic region) with long icy winters and very short summer with an average temperature of 10°C.

Ursus maritimus has a variety of adaptations which enable it to survive in the tundra. These adaptations include:

--> The presence of a thick coat of insulated WHITE FUR: this helps it to survive the cold environment by acting as an effective insulator. The fur is also found at the base of its large paws with small bumps, which protects it against cold surfaces and provides its with a better grip of ice as it walks across it. It also gives it a concealing coloration making it unnoticed while it stalks its prey in the snow. These are the features that enables it survive the terrestrial environment if tundra.

--> it also has some aquatic adaptations which enables it to hunt it's favourite food which is seals. The presence of large front paws which are slightly webbed allows them swim for a long distance in search of food.

Answer:

c polar bears

Explanation:

got it right edg 2021

Answer:

D

Explanation:

Answer:

Lipids; provides long term energy to keep the kid wound up for hours

Explanation:

When you give a child sugar they will have energy for a while

Lipids are present in the cotton candy which makes it high for hours. option D is correct.

A lipid is any of various organic compounds that are insoluble in water. They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers.

Lipids provide long-term energy to keep the kid wound up for hours. Some of their main functions include energy storage, hormones, and cell membranes.

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Answer:

true

Explanation:

my freind says so..

Answer:

the genotype of the man would be Dd

Explanation:

Heterozygous means having to different alleles (ex. Ff) so the mans genotype would be Dd

Answer:

Plasma is the liquid portion of blood. About 55% of our blood is plasma, and the remaining 45% are red blood cells, white blood cells and platelets that are suspended in the plasma.

Explanation:

Answer: Plasma is the liquid portion of blood.

Explanation: About 55% of out blood is plasma, and the remaining 45% are red blood cells, white blood cells and platelets that are suspended in the plasma.

Answer:

A. By noting that biofuels come from vegetables such as corn and sugar beet.

Explanation:

The author claims that biofuels are a good replacement for fossil fuels in the vehicles because it produced less carbondioxide gas as compared to fossil fuels. The biofuels also produced pollution but less as compared to fossil fuel. This biofuel is extracted in the form of Bioethanol which is a type of alcohol made by fermentation process of starch crops such as corn, sugarcane, or sweet sorghum. This biofuel made from biological materials that decrease the production of carbondioxide gas.

Answer:

Sunlight

Explanation:

I just got it wrong because of the wacko below or above me gave me the wrong answer

Algae possess chlorophyll in their cells. They use carbon dioxide in a manner that is analogous to how we use food. Thus, option B is correct.

By converting light energy to chemical energy through the process of photosynthesis, carbon dioxide and water are transformed into organic molecules.

Nearly all algae engage in the process, and in fact, much of what is currently known about photosynthesis was first uncovered through research on the green alga Chlorella.

Like other plants, algae benefit from sunlight, therefore denying them of it will limit or even completely stop their growth. For several days, completely shading the tank or aquarium from light is essential.

Therefore,  algae require sunshine because algae can photosynthesize, or use sunlight to change carbon dioxide into biological material.

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Answer: glucose and Oxygen

Explanation: Glucose is converted to water and carbon dioxide in mitocondries and energy is released. Oxygen is needed to reaction.

Amino acids can be converted to energy but that is not primary purpose of amino acids.

Answer:

The answer is "the amount of light each plant receives

At the time of graphing the data, the factor that should be considered as the independent variable should be the light amount that each plant received.

The plant should be treated as a living thing that should be grown in the earth and contains the stem, leaves, and roots.

At the time when the gardener performed the experiments on the tomato plants so here, the factor should be the light amount that each plant received.

Therefore, the second option is correct.

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Answer:

D. your backyard

Explanation:

A microhabitat is a small area which differs somehow from the surrounding habitat. Its unique conditions may be home to unique species that may not be found in the larger region and the backyard does not relate to this definition

Answer:

A few of the ecotourism features are the traditional practices, encouraging interaction between visitors with the local villages to increase sale of handicraft items, the promotion of cultural dance, music as well as hiring local workers to maintain the lodge

Answer:

Well, the primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. ... Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure.

Answer:

The biggest difference between the two are that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.

Is this a question or just a prank?

Answer:

C the moom rotates around itself slower than eath rotates around itself

Explanation:

Explanation:

Cnidarians

.............

Answer:

In order from top to bottom

C

A

E

D

B

Explanation:

1) Reflection is when a ray hits something reflective then bounces back. For example, light reflects off a mirror, which is why you can see yourself in a mirror.

2) Wavelength measures the size of a wave. It is measured from the crest or trough of one wave to the crest or trough of another.

3) Refraction occurs when waves go through different mediums at different speeds. This is why a straw looks bent when in water.

4) Frequency is a way of measuring the speed of a wave. It shows how many waves pass every unit of time.

5) Absorption means that all of the waves were absorbed into the medium and none of them passed through.

Answer:

...

Explanation:

Answer:

The atmospheric layers start from the ground level of the earth and rise up to a certain height according to its temperature, pressure, composition, and other properties. From the ground level they are:

Troposphere:- (0 -12 km) or (0 to 7 miles)

Stratosphere:- (12 -50 km) or (7 to 31 miles)

Mesosphere:- (50 -80 km) or (31 to 50 miles)

Thermosphere:- (80 -700 km) or (50 to 440 miles)

Exosphere:- (700 -10000 km) or (440 to 6200 miles)

Explanation:

Answer:

this is the answer

Explanation:

Answer:

The orchids benefit in several ways. They get more sunlight and are more easily visited by the moths which pollinate them.Orchids do not harm the trees they grow in. Their roots stay on the bark of the tree; they do not take water or nutrients from the tree.

Answer:

An energy pyramid, also known as a trophic or ecological pyramid, is a graphical representation of the energy found within the trophic levels of an ecosystem.

ITS WATER I SWEAR

H20 has multiple elements in it so its a compound the others are just single elements

PLEASE giv brainliest

Answer:

whats the project is it an essay

Explanation:

Answer:

Sea otters, because of their eating habits, are considered a “keystone predator,” predators that keep the ecosystem balanced. ... When not enough otters are around to eat the sea urchins, the urchin colonies grow unchecked and “urchin barrens” increase.

Explanation: