The form of nitrogen most likely to be absorbed from the soil by plants is
A. nucleic acids.
B. nitrogenous wastes.
C. nitrous oxide gas.
D. nitrogen gas.
E. nitrite/nitrate ions.
Answer: E
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Which feeding tactic is most associated with a large-toothed, predatory carnivore?
A. suspension feeder B. food-mass feeder C. deposit feeder D. fluid feeder
Killifish and pike-cichlids raised in natural
conditions will a. affect the age at first reproduction of the guppies that live with them. b. prey on guppies. c. affect the growth rate of guppies. d. affect the evolution of the guppies’ life history traits. e. do all of these.
Both Trichomonas and Giardia are parasitic protists in the group called
A) slime molds. B) alveolates. C) diatoms. D) excavates. E) euglenids.
A chemical interaction in which the products contain less free energy than the reactants is called a(n) ____________________ reaction.
Fill in the blank(s) with the appropriate word(s).