To determine the number of individuals added to a population during a given time, multiply the growth rate (r) by the
A) final population size.
B) original population size.
C) biotic potential.
D) environmental resistance.
E) number of immigrants.
B
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Repair of thymine dimers using light to split the dimers apart into separate monomers is called
A. photoreactivation. B. photoreparation. C. photodedimerication. D. None of the choices are correct.
What is the ultimate fate of oxygen gas (O2) in cellular respiration?
a. It is respired as CO2. b. It is converted to water. c. It is attached to glucose. d. It is attached to pyruvate. e. It accepts electrons in glycolysis.
Use of CFCs depletes the __________ in the upper
atmosphere and allows more UV radiation to reach Earth’s surface. Fill in the blank(s) with the appropriate word(s).
Which of the following consists of organisms all of which share a common gene pool?
a. a community b. a population c. a biosphere d. an ecosystem e. a landscape