Question

which response of plants helps ensure that seeds will only germinate when environmental conditions are favorable?
a phototropism
b geotropism
c dormancy
d all of the above

Explanation:

• Phototropism is the growth response of a plant to light, not related to seed germination timing.
• Geotropism is the growth response to gravity, also not about seed germination conditions.
• Dormancy is a period where seeds remain inactive, waiting for favorable environmental conditions (like proper temperature, moisture) to germinate. So dormancy ensures seeds germinate only when conditions are favorable.

Answer:

c. Dormancy