1. You are in charge of the captive breeding program of the Brown Barbaloot, an endangered mammal that feeds exclusively on Truffula fruits. As an evolutionary biologist, you are intimately aware of the evolutionary forces that affect genetic variation (hint – H-W equilibrium). Using this perspective, what management techniques would you use to maintain genetic diversity and why?

The answer is C roots and stem.

Plant hormones regulate plant growth, including stem and roots, as well as leaves formation. Plant organs are stem, roots, leaves. and reproductive structures. So, meristem from choice A cannot be the correct since it is a tissue. Among plant organs, plant hormones will have the bigger effect on roots and stem.