Food supplies that sustain animal populations have the capacity to increase:a
arithmetically.
b. by accumulation and deduction.
c. geometrically.
d. symmetrically.
e. migration rates.
A
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Closely linked genes nearly always end up
a. crossing over. b. assorting independently. c. in the same gamete. d. segregated during meiosis. e. inverted.
Which of the following best explains why regulating opening and closing stomata is more difficult in dry and hot environments?
a. Photorespiration becomes a bigger problem as the climate becomes colder. b. Photorespiration becomes a bigger problem as the climate becomes warmer. c. Photorespiration becomes a lesser problem as the climate becomes warmer. d. Photorespiration becomes a lesser problem as the climate becomes colder.
Which of the following statements about the skeleton of a clam is NOT true?
A. The skeleton of a clam has two separate shells. B. The skeleton of a clam has muscles attached to it from the inside of the body. C. The skeleton of a clam is made of calcium carbonate. D. The skeleton of a clam is used mainly to allow movement of the organism. E. The skeleton of a clam grows with the organism.
What is the relationship between the degree of crossing over and the distance between two genes?
A) It is direct: as the distance decreases, the frequency of recombination increases. B) It is direct: as the distance increases, the frequency of recombination increases. C) It is indirect: as the distance increases, the frequency of recombination doubles. D) There is no correlation. E) It is indirect: as the distance decreases, the frequency of recombination doubles.