The Most Prominent Known Role in the Opening and Closing

question 92

Multiple Choice

The most prominent known role in the opening and closing of stomata is played by____ ions.

• A)Ca²⁺
• B)Cl ^-
• C)K⁺
• D)NH₄⁺
• E)Na⁺

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Definitions:

Natural Selection

A process by which organisms that are better adapted to their environment tend to survive and produce more offspring.

Synthetic Stimulant

A man-made substance designed to increase alertness, attention, and energy, often used as drugs.

Mild Hallucinogen

A substance that induces subtle alterations in perception, mood, and thought, without causing intense hallucinations or loss of reality.

Dopamine

A neurotransmitter in the brain that plays key roles in regulating mood, motivation, pleasure, and motor control.