Selection that reduces the frequency of hybridization and/or the fitness of hybrids between populations following secondary contact is termed ________
Fill in the blank(s) with correct word
reinforcement
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Scientific work involves
a. the natural and supernatural world. b. retesting theories frequently for verification. c. proving theories with absolute certainty. d. testing hypotheses under every possible circumstance. e. coming up with the best descriptions of reality.
Based on industrialization, which region of the United States is most affected by acid rain?
a. northwest b. southwest c. northeast d. southeast e. central plains
What are the three common epidemiological measurements used in this exercise and by the CDC?
A) Morbidity, Mortality, and Incidence B) Mortality, Incidence and Prevalence C) Incidence, Prevalence, and Morbidity
If you flip the light switch in your living room and nothing happens, what might be a good hypothesis to explain the absence of light?
A) The circuit breaker for the living room might be the "off" position. B) Electricity sometimes flows backward in a wire, preventing the light from shining. C) You might have made too many telephone calls this month, thereby reducing the amount of electricity in your lines. D) The air conditioner is also running upstairs, and it might be using all of the electricity available in your house at the moment.