Which type of virus causes polio and AIDS?
A) retrovirus
B) reovirus
C) bacteriophage
D) adenovirus
E) parvovirus
A) retrovirus
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Which of the following statements is NOT true of cephalopods?
A. Some are very large and can weigh as much as two tons. B. Some are very intelligent and are good learners. C. Some have shells and some do not. D. They are predatory. E. They have an open circulatory system.
Disagreements between conclusions obtained from rDNA data and other techniques may be explained by
A. horizontal DNA transfer. B. vertical DNA transfer. C. the difference in translation machinery. D. vertical RNA transfer.
Glycolysis occurs in the
A. cell membrane. B. lysosome. C. cytoplasm. D. nucleus. E. mitochondria.
A fossil is defined most broadly as:
a) a piece of an organism that has turned into rock. b) the preserved pieces of hard parts (e.g., shell or bone) of extinct animals. c) the process of preservation of intact animal bodies. d) any preserved remnant or trace of an organism from the past. e) the preserved bones of vertebrates.