Bush Beans Grow as Small Bushes Rather Than as Vines

question 30

Multiple Choice

Bush beans grow as small bushes rather than as vines because their internodes are short and they branch close to the apical meristem. Which substance, if applied to a bush bean, might cause it to elongate its internodes and grow as a vine?

• A) a cytokinin
• B) a gibberellin
• C) abscisic acid (ABA)
• D) ethylene

---

Definitions:

Perception

The process by which sensory input is organized and interpreted by the brain to construct a meaningful experience of the world.

Knowledge

Facts, information, and skills acquired through experience or education; the theoretical or practical understanding of a subject.

Detecting Stimulus

The process by which organisms identify and respond to environmental changes or signals.

Recognizing Stimulus

The act of identifying a specific stimulus from a set of similar stimuli, based on prior experience or knowledge.