What Is the Principal Substance That Causes Phototropism in Stems

question 129

Multiple Choice

What is the principal substance that causes phototropism in stems or leaves?

• A) auxin
• B) gibberellin
• C) abscisic acid
• D) ethylene
• E) all of these

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Definitions:

Environmental Stimuli

External factors or conditions in the environment that can provoke a response from living organisms.

Incentives

Rewards or stimuli that motivate individuals to perform certain actions or behave in specific ways.

Physiological State

The condition of the body at a given time, including aspects such as temperature, heart rate, and hormone levels.

Motivational State

The internal condition that activates and directs behavior towards achieving specific goals, influenced by desires, needs, and ambitions.