The probability that two random events will occur together is equal to the __________
a. sum of their individual probabilities
b. difference between their individual probabilities
c. product of their individual probabilities
c
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The black bellied seed cracker, Pyrenestes, is a West African finch. Within the same geographic region, two subspecies of the finch are found. One subspecies has a large beak, which is efficient at cracking the hard seeds of the sedge, Scleria verrucosa. The other subspecies has a small beak, which is more efficient at eating the soft seeds of the sedge, Scleria goossensii. What type of selection occurred to produce this situation? Explain what a population distribution graph would look like that would depict this type of selection.
What will be an ideal response?
Inheritable mutations in the genes of an individual arise due to
A) artificial selection. B) other species in the environment. C) vigorous exercise or effort. D) random chance. E) environmental change.
You are an international policy maker reviewing biotech crop regulations. Which of the following information sources would provide a reliable scientific assessment of the impacts of biotech crops?
a. A policy review prepared by an anti-GE nonprofit group b. Research results from an independent scientist about the effects of biotech crops on biodiversity published in a scientific journal c. A research report prepared by a global biotech company d. A national scientific panel review of all the biotech crop research published over the past 15 years
In the simplified prairie food chain illustrated by the pictures below, the letter C represents a ____
a. tertiary consumer b. secondary consumers c. first trophic level d. primary consumers e. third trophic level