Using the graph, which of the lines in the graph represents the slowest population growth curve?
a. World
b. Africa
c. Europe
d. Latin America
c. Europe
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Very small and very large human newborns are less likely to survive than those born at an intermediate weight due to
____.
a. sexual selection b. artificial selection c. disruptive selection d. directional selection e. stabilizing selection
In an experiment, the control group:a
disproves the theory. b. proves the hypothesis. c. proves the prediction. d. does not contain the variable being tested. e. is similar to the test group in all aspects including the variable being tested.
Flower color in snapdragons is an example of incomplete dominance. When a red-flowered plant is crossed with a white-flowered plant, the offspring have pink flowers. If a pink-flowered plant is crossed with another pink-flowered plant, their offspring will be:
a) 50% pink and 50% red. b) 25% red, 50% pink, and 25% white. c) 25% white and 75% red. d) all white. e) all pink.
Which of the following reproductive barriers actually prevents individuals of different species from mating with each other?
a. gametic isolation b. behavioral isolation c. hybrid sterility d. hybrid breakdown e. hybrid inviability