An ecologist who studies the cycling of nutrients and the flow of energy between the biotic and abiotic components of
an ecological community is a(n) ____ ecologist.
a. behavioral
b. behavioral
c. community
d. ecosystem
e. organismal
ANSWER: d
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Nitrogen mineralization is dependent on the ratio of nitrogen to carbon in the soil. Therefore, if you want to control the levels of nitrogen mineralization, it would be helpful to control soil levels of:
A. nitrogenase. B. phosphatase. C. ATP. D. organic matter.
The maximum volume of air that can be inspired following a resting expiration is called
A) functional residual capacity. B) vital capacity. C) inspiratory capacity. D) inspiratory reserve volume. E) tidal volume.
What does each eukaryotic chromosome contain?
a. one long double-stranded DNA molecule b. one long DNA strand c. one long sequence of amino acids d. one single long gene e. one long ribonucleotide sequence
The primary function of the nucleus is
A) production of the cell's energy molecule, ATP. B) serving as the site of most of the cell's chemical reactions. C) serving as the site of ribosome synthesis of protein. D) housing the cell's DNA. E) digestion and processing of nutrients.