In an existing population of plants and mycorrhizae, disease strikes and the mycorrhizae are killed. Which of the following would be impacted? Check all that apply.

A. the supply of organic food to the plant
B. the binding of the soil and erosion
C. the water supply to the plant
D. the availability of mineral nutrients to the plant


Answer: D

Biology & Microbiology

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In New Mexico, large expanses of black lava create patches of unique habitat. If, in every generation, selection favors the darkest colored pocket mice in those habitats because they are best hidden from predators, this would be an example of:

A. balancing selection. B. stabilizing selection. C. directional selection. D. disruptional selection. E. heterozygote advantage.

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Ferns are independent of water for reproduction.

Answer the following statement true (T) or false (F)

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The presence of a suntan is due to increased activity of ________ in response to increased levels of ultraviolet radiation

Fill in the blank(s) with correct word

Biology & Microbiology