Multiple Choice
What do the results of research on gravitropic responses of roots and stems show?
A) Different tissues have the same response to auxin.
B) The effect of a plant hormone can depend on the tissue.
C) Some responses of plants require no hormones at all.
D) Light is required for the gravitropic response.
Correct Answer:

Verified
Correct Answer:
Verified
Q12: This experiment suggests that the unknown amount
Q15: Statoliths are structures that are responsible for<br>A)phototropism.<br>B)gravitropism.<br>C)thigmotropism.<br>D)dormancy.
Q16: Plants that have their flowering inhibited by
Q30: _ promote(s) stomatal closure in plant leaves
Q31: A botanist discovers a plant that lacks
Q34: The signaling molecule for flowering might be
Q45: Which of the following statements best summarizes
Q53: When an arborist prunes a limb off
Q54: In an experiment,a plant physiologist has four
Q59: What is the probable role of salicylic