In the scientific method, hypotheses lead most directly to:

A. predictions
B. theories
C. experiments
D. observations
E. conclusions


Answer: A

Biology & Microbiology

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A substance that promotes binding of Rhizobium to plant root hairs is called a ________ factor.

Fill in the blank(s) with the appropriate word(s).

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What accounts for the fact that polydactylism is prevalent and Tay-Sachs disease virtually absent in

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A primary difference in the age pyramids of industrialized versus developing countries is that:

a. third-world countries show a characteristic "bulge" that indicates a baby boom. b. third-world countries have significantly more individuals than industrialized countries. c. third-world countries have much larger proportions of their population in the youngest age group.

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