In highly integrated insect societies,
a. natural selection favors individual behaviors that
lead to greater diversity among members of the
society.
b. there is scarcely any division of labor.
c. cooperative behavior predominates.
d. patterns of behavior are flexible, and learned
behavior predominates.
e. all of these are true.
Answer: c
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Which of the following would NOT be found inside a Haversian (central) canal?
a. bone cell b. blood capillary c. nerve d. nutrients e. wastes
How do phospholipids interact with water molecules?
A) The polar heads avoid water; the nonpolar tails attract water (because water is polar and opposites attract). B) Phospholipids do not interact with water because water is polar and lipids are nonpolar. C) The polar heads interact with water; the nonpolar tails do not. D) Phospholipids dissolve in water.
If a pedigree of several generations shows only females affected by a particular trait, it cannot be a(n) ____ trait
a. autosomal recessive
b. autosomal dominant
c. Y-linked
d. X-linked recessive
e. X-linked dominant
If you wanted to compare the relative abundance of mRNA transcribed for a specific gene by two different strains of bacteria, you could perform
a. a Southern blot. b. a Northern blot. c. site-directed mutagenesis. d. either a or b.