Cutting off the tails of mice over several generations should cause the tails of their offspring to become shorter, according to the ideas of which of these scientists?
A. Darwin
B. Wallace
C. Lamarck
D. Lyell
E. Cuvier
Answer: C
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An organism has one Z chromosome and one W chromosome. That organism is
A. a female bird. B. a male bird. C. a female insect. D. a male insect. E. a male or female human.
Photosynthetic mesophyll tissue is a type of ____
a. collenchyma b. parenchyma c. periderm d. sclerenchyma e. pericycle
Viruses with ________-sense RNA contain the correct message for translation, while viruses with ________-sense RNA must first be converted into a correct message.
A. secondary; primary B. intermediate; primary C. negative; positive D. positive; negative E. primary; secondary
Most of the water vapor in the earth's atmosphere comes from evaporation from
a. lakes. b. rivers. c. land. d. oceans. e. plants.