Recovery from a mass extinction requires about how
long?
a. 100,000 years
b. none of these because recovery is never possible
c. about as long as the extinction required
d. less than one million years
e. at least 10 million years
Answer: e
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Genes that are highly conserved are
A) found in a wide range of species. B) repeated many times in a genome. C) found in humans only. D) deleted by natural selection.
The enzyme that fixes carbon dioxide into the Calvin-Benson cycle is ____
a. rubisco b. carbon dioxide oxidase c. ATP synthase d. carbon hydrogenase e. RuBP
During embryonic development, all chordates have a ________ nerve cord
Fill in the blank(s) with correct word
What cause of infertility happens to nearly every woman at some point?
A. Pelvic inflammatory disease (PID) B. Aging C. Luteal phase defect D. Endometriosis E. Idiopathic infertility