A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird?
a) herbivore; decomposer
b) carnivore; consumer
c) autotroph; herbivore
d) producer; heterotroph
Ans: b) carnivore; consumer
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Dr. Gregory House, a character on a television program, experiences severe withdrawal symptoms when he stops taking hydrocodone, a drug that he originally took to alleviate leg pain, but has not been able to give up. He is exhibiting
A) tolerance. B) dependence. C) paranoia. D) suicidal ideation.
According to researchers Parmesan and Yohe, how are living systems responding to anthropogenic global warming?
a. All biomes are remaining intact but are shifting their distributions northward. b. Some species are moving northward and others are not, so communities are being disrupted. c. All biomes are remaining intact, but some are shifting their distributions and other biomes are not. d. Most plants are shifting their distributions northward, but most animals are not. e. Most animals are shifting their distributions northward, but most plants are not.
How many phenotypic classes may be generated from a three-point testcross?
A) (3)2 = 9 B) (2)3 = 8 C) (3)3 = 27 D) (2)2 = 4 E) It cannot be predicted.
In island biogeography, larger islands support ________ species than smaller islands.
A. more ancient B. larger C. more recently evolved D. more E. fewer