Plants have small holes called stomata on the underside of leaves. Stomata are opened to draw up water from the leaves and allow carbon dioxide in so that the process of photosynthesis can occur. During the process, some water is lost through the open stomata. Based on this information, which stimulus is most likely to cause the stomata to close?

A. Water volume increasing in the soil
B. Water volume decreasing in the soil
C. Carbon dioxide concentration increasing in the atmosphere
D. Carbon dioxide concentration decreasing in the atmosphere

D. Carbon dioxide concentration decreasing in the atmosphere

Explanation:

Since the stomata are opened for the plant to draw the water from the leaves A and B can't be the answer since they rely on needing water from the soil.

Stomata open to also draw carbon dioxide from the atmosphere in order for the process of photosynthesis to occur. This means that they open when there is a high concentration of carbon dioxide in the atmosphere and close when that concentration becomes lower.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

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