Figure 31.2
-The results of this experiment, shown on the left of the graph (area A), may be used to
A) show that these plants can live without gibberellin.
B) show that gibberellin is necessary in positive gravitropism.
C) show that taller plants with more gibberellin produce fruit (pods).
D) show a correlation between plant height and gibberellin concentration.

Question

Figure 31.2
-The results of this experiment, shown on the left of the graph (area A), may be used to
A) show that these plants can live without gibberellin. 
B) show that gibberellin is necessary in positive gravitropism. 
C) show that taller plants with more gibberellin produce fruit (pods). 
D) show a correlation between plant height and gibberellin concentration.

Quizplus · Accepted Answer

The graph shows a clear correlation between plant height and gibberellin concentration, with taller plants having higher levels of gibberellin. Therefore, choice D is the best answer. Choices A and B are incorrect as the experiment does not provide evidence that plants can live without gibberellin or that gibberellin is necessary for positive gravitropism. Choice C is partly correct, but the experiment does not address the production of pods specifically, so it is not the best answer.