The Great Salt Lake would be an excellent location to find methanogens.
a. true
b. false
Ans: b. false
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What structure in most ray-finned fish is responsible for buoyancy control?
a. Gas gland b. Blubber c. Squaline d. Swim bladder
When measuring the age of a fossil using
Carbon dating, what is the oldest age that a fossil can be?
a. 2.2 million years old b. 200,000 years old c. 85,000 years old d. 72,000 years old e. 60,000 years old
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A difference between a morula and a blastula is that the:
A) blastula has fewer cells than the morula. B) morula is a solid ball of tightly packed cells, whereas the blastula has a cavity in the center. C) morula is a well-developed embryo, and the blastula is an earlier stage of development. D) morula has a hollow center, but the blastula doesn't.