AP Environmental Question, photosynthesis

Certain cells, such as those along the digestive tract, need to absorb a lot of materials. What unique features do you notice ab

sesenic [268]

In the small intestine, these cells contain microvilli, which are tiny hair-like projections that increase nutrient absorption. These projections increase the surface area of the small intestine allowing more area for nutrients to be absorbed.

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3 years ago

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Which practice contributes the most to environmental pollution?

vagabundo [1.1K]

Cultural practices contributes the most to environmental pollution because by making a fire produces the smoke which pollutes the air , that how culture practices contribute to air pollution.

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3 years ago

Populations of some species of fish, insects, and crustaceans consist of both sexually and obligately asexually reproducing indi

jenyasd209 [6]

Answer:

Entirely asexual populations of animals are rare.

The cost of sexual reproduction is considered to be twice that of asexual reproduction, because sexual females produce ≈ 50% male offspring, and males typically contribute only their genes to reproduction (Maynard Smith, 1978). Following this logic, asexual reproduction should dominate unless there is greater than a two-fold advantage to sexual reproduction.

B) Factors that might maintain a given mode of reproduction might include access or availability of mates, disease, or parasites. For example, if diseases and parasites have a major effect on the population, the Red Queen hypothesis suggests that sexual reproduction would be favored

C) Sexual selection is thought to be one way by which sexual reproduction is maintained, because only fit males are able to mate. In an environment free from enemies, asexual reproduction would be favored, but are unlikely to persist over evolutionary time, because when the environment changes they will have much less ability to adapt (owing to a lack of novel genetic variation that would be provided by segregation and recombination in a sexual population).

4 0

3 years ago

What is the function of chloroplasts in a plant cell

dusya [7]

Answer:

<h2>function of chloroplast:</h2>

protection
maintain shape
maintain rigidity of cell
help in osmosis

__________&___________

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3 years ago

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Elijah wanted to learn more about the growth pattern of bacteria, so he performed the following experiment.

ycow [4]

Answer:

attatch the images of the Petri dishes so we can further help in understanding this question

4 0

3 years ago

AP Environmental Question, photosynthesis - please help!