How does the formation of other embryonic layers influence the formation of the endodermal structures?

What is the function of the pericycle?

What is a stipule? Distinguish a stipule from axillary bud.

Concerning reproductionwhat is the function of thetesticles?

what is the process whereby a neoblast can create the 30 or so cell types of the adult planarian? When does cell specification take place?

Describe the relationship between telomeres and senescence.

Explain epigeous and hypogeous development in relation to germination. This is not something we covered, but you should be able to research what these refer to and explain them based on your knowledge of embryo anatomy and physiology.

Describe the structure, function, and location of thetonsils.

An additional notochord is grafted next to the developing neural tube. Answer the following questions. (a) what new cells would you expect to develop in the region of the neural tube closest to the graft? (b) What is the notochord-derived molecule that is responsible for the effect?

How do plants control theopening and the closing of thestomata?