Darwin spent five years doing research while sailing aboard the

a. H.M.S. Pinafore.
b. H.M.S. Beagle.
c. H.M.S. Hood.
d. H.M.S. Constitution.


e. H.M.S. Howe.


B

Biology & Microbiology

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The atomic number of an element is equal to the number of:

A. protons plus neutrons. B. neutrons plus electrons. C. neutrons only. D. protons only. E. protons plus electrons.

Biology & Microbiology

Which of the following is an example of interference competition? a. Deer and blue jays eating acorns

b. Bluegill and catfish both eat worms. c. Maggots decomposing a rotting apple before the bacteria can decompose it. d. Hyenas chasing a lion away from the zebra carcass. e. A dove nesting in a pine tree while a blue jay nests in an oak tree.

Biology & Microbiology

Which of the following would bear the most resemblance to Archaeopteris, an ancient plant genus that preceded gymnosperms and angiosperms?

A. A ginkgo lacking vascular tissue. B. A pine tree that does not produce cones. C. A cycad that does not produce coralloid roots. D. A grass species that lacks flowers. E. A sunflower that does not produce endosperm.

Biology & Microbiology

Expression of the SRY gene causes an embryo to

develop __________. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology