In Figure 23-2, the taxon labeled II is:
a. monophyletic.
b. paraphyletic.
c. polyphyletic.
d. a clade.
e. an outgroup
B
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The early atmosphere
a. was essentially the same as occurs now. b. was changed drastically by the liberation of oxygen following the evolution of photosynthesis. c. was characterized by high concentrations of oxygen and ozone. d. was characterized by high concentrations of inert gases before the evolution of living organisms. e. was so dense that life could not evolve.
Insulin is a peptide hormone that controls the level of glucose in the blood. It is released from the pancreas as soon as you eat, even before blood glucose levels rise. This is an example of:
A. conditioning. B. positive feedback. C. negative feedback. D. feed-forward regulation.
Which of the following best defines the term pathology?
A) the scientific study of diseases B) the invasion and colonization of a host by a microorganism C) Pathogenesis D) etiology
Water can ________ changing its temp because of its ________ specific heat.
Fill in the blank(s) with the appropriate word(s).