Opening of the Stomata

question 27

Multiple Choice

Opening of the stomata:

• A) occurs during prolonged periods of drought.
• B) occurs when there is a high concentration of carbon dioxide in the leaf.
• C) is under hormonal control.
• D) is triggered by darkness.
• E) is controlled by the changes in shape of the companion cells.

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Definitions:

Improve

To make or become better; to enhance the quality, value, or performance of something.

Positive Reinforcer

A stimulus which, when presented after a behavior, increases the likelihood of that behavior occurring again in the future.

Negative Reinforcer

An unpleasant or adverse stimulus that, when removed after a behavior, increases the likelihood of that behavior being repeated.

Mother

A female parental figure who may give birth to, adopt, or rear a child in the role of providing care, nurture, and protection.