Describe Two Possible Explanations for the Deep Branching Position of Multiple

question 62

Essay

Describe two possible explanations for the deep branching position of multiple methanogenic clades in the euryarchaeotes.

---

Definitions:

Foreskin

The retractable fold of skin covering the end of the penis.

Seminiferous Tubules

Tiny, tightly compressed tubes in which spermatogenesis takes place.

Epididymis

A tightly coiled tube situated behind the testis, where sperm are stored and mature.

External Male

This term appears to be unclear or not well-defined as it stands; may refer to aspects of male anatomy visible externally.