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Alchen [17]
3 years ago
9

When a certain plant is without water for an extended period of time, guard cells close openings in the leaves of the plant. Thi

s activity conserves water and illustrates
A. cellular communication involving the action of nerve cells and receptor sites
B. an increase in rate of growth due to a low concentration of water
C. maintenance of a dynamic equilibrium through detection and response to stimuli
D. a response to one biotic factor in the environment
Biology
1 answer:
IceJOKER [234]3 years ago
7 0

Answer:

a response to one factor in the environment

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Explanation:

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A star is not considered born until the process of nuclear fusion
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Answer:

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