Question

the diagram shows two plants. they are the same kind of plant, and they were grown in the same environmental conditions.
plant x:
average height
plant y:
below average height
which statement best explains the difference in growth among the plants?
plant x has too much auxin.
plant y has too much auxin.
plant x does not have enough auxin.
plant y does not have enough auxin.

Explanation:

Auxin is a plant hormone that promotes growth. If a plant has less auxin, its growth will be stunted. Plant Y is below average height, which suggests it lacks sufficient auxin for normal growth.

Answer:

Plant Y does not have enough auxin.