All atoms of an element have the same number of
a. ions.
b. protons.
c. neutrons.
d. electrons.
e. protons and neutrons.
Answer: b
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The distribution of the human population in the
United States is a. clumped. b. random. c. uniform. d. constant. e. homogeneous.
The acid group in an amino acid is the ______________ group. Fill in the blank(s) with the appropriate word(s)
The countercurrent exchange system found in fish gills maximizes gas exchange efficiency by:
a. producing rapid water flows across the gill surface. b. allowing water and blood to come in direct contact to maximize oxygen exchange. c. having the most oxygen-depleted blood come in contact with the most oxygen-rich water. d. having the most oxygen-depleted blood come in contact with the most oxygen-depleted water. e. decreasing the oxygen content of the blood leaving the gill filaments
Which part of a basidiomycete is the basidiocarp?
a. the haploid life cycle stage b. the feeding stage c. the infecting vessel d. the reproductive body