Snakes are most closely related to:
a. lizards.
b. turtles.
c. eels.
d. caecilians.
e. synapsids.
a
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Blood contains
(a) dissolved gases. (b) dissolved nutrients. (c) dissolved hormones. (d) all of the above.
What is the probability of rolling two six-sided dice and obtaining at least one 3?
What will be an ideal response?
Which of the following cellular processes is coupled with the hydrolysis of ATP?
A. Facilitated diffusion B. Active transport C. Chemiosmosis D. Osmosis E. Na+ influx into a nerve cell
The fact that genes associated with altruism are favored by natural selection if they lead to the reproductive success of an altruist's closest relatives is called _____.
A. inclusive fitness B. survival of the fittest C. evolution D. inbreeding E. selective mating