Plants Can Generally Absorb and Make Use of Nitrogen in the Form

question 26

Multiple Choice

Plants can generally absorb and make use of nitrogen in the form of ____.

• A) NO₃^-only
• B) both NO₃^-and NH₄⁺
• C) NH₄⁺only
• D) N₂only
• E) both N₂and NH₄⁺

---

Definitions:

Difference Threshold

The minimum difference in stimulation that a person can detect 50% of the time.

Stimuli

External factors or conditions that elicit responses from an organism or a part of the body.

Sensory Adaptation

How sensory receptors grow increasingly insensitive to stimuli that do not change, happening gradually.

Perceptual Set

A mental predisposition to perceive things in a certain way, influenced by expectations, culture, emotions, and other psychological factors.