The atomic mass (mass number)of an atom is
determined by the combined masses of its
a. neutrons and protons.
b. neutrons and electrons.
c. protons and electrons.
d. protons, neutrons, and electrons.
e. neutrons, nucleus, and electrons.
Answer: a
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Studies have determined that all of the following except ______ are responsible for the cyclical rise
and fall of arctic hare and lynx populations.
a. predation b. a limited food supply for hares c. predation by other mammals d. intraspecies competition e. disease
Which algae are the most probable ancestors of land plants?
a. charophytes b. chlorophytes c. chrysophytes d. gametophytes e. phaeophytes
Name two consensus sequences or modular DNA sequences that may be found upstream from coding regions of some eukaryotic genes
What will be an ideal response?
Maintaining individual quality of life at a high level will require, above all, that humans exhibit a reproductive restraint that defies the entire history of evolution, during which "fitness" has been measured in terms of reproductive success rather than quality of life.
a. true b. false