Figure 20.58 -In the Phylogenetic Tree Shown in Figure 20.58,what Can You

question 93

Multiple Choice

figure 20.58
-In the phylogenetic tree shown in figure 20.58,what can you conclude about the origin of marine (sea) snakes?

• A)The marine snakes were the ancestor to all modern snakes
• B)The marine snakes evolved independently from terrestrial snakes
• C)The marine snakes arose later in snake evolution
• D)Marine snakes probably had functional hindlimbs more recently than did terrestrial snakes
• E)Marine snakes are more closely related to amphibians than to other reptiles

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Definitions:

Menarche

The onset of menstruation in females, marking a significant milestone in puberty.

Production of Sperm

The biological process by which male gametes or spermatozoa are created, typically within the testes in mammals.

Production of Semen

The production of semen is a physiological process involving the male reproductive system, in which spermatozoa are mixed with fluids from the seminal vesicles, prostate, and other glands to form semen.

Testosterone

A steroid hormone that plays a key role in the development of male reproductive tissues and secondary sexual characteristics.