The skulls of infant chimpanzees and infant humans are remarkably similar in shape. As they mature
they become quite different due to
a. allometric growth
b. paedomorphosis
c. gradualism
d. preadaptation
e. heterochrony
A
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In plants, the sporophyte generation produces _______ as a result of meiosis.
Fill in the blank(s) with the appropriate word(s).
The difference between people who handle stress
well and those who become deeply depressed is based on all BUT a. polygenic inheritance. b. genes and the environment. c. a transporter protein that moves serotonin into brain cells. d. a gene product that counters anxiety. e. a gene mutation.
Gases are exchanged in a mammalian embryo in the
A) amnion. B) hypoblast. C) chorion. D) trophoblast. E) yolk sac.
A major difference between prokaryotes and eukaryotes is that although prokaryotes
A. do not have a nucleus, eukaryotes have a nucleus in their cells. B. have chloropast for photosynthesis, eukaryotes do not. C. have mitochondria, eukaryotes do not. D. have DNA, eukaryotes only have RNA. E. have cell walls, eukaryotes do not.