In a population, the difference between the birth rate and the death rate is the

A. population dispersion factor.
B. per capita rate of increase.
C. population density determining factor.
D. S-shaped population curve.
E. J-shaped population curve.


B. per capita rate of increase.

Biology & Microbiology

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Genetics is the study of

A) variation of inherited traits. B) how organisms reproduce. C) how life originated. D) how the environment causes disease.

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Which is not a scientific theory?

a. Plate tectonics b. Global warming c. Evolution d. Thermodynamics e. Big bang

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The prebiotic soup hypothesis proposes that organic molecules formed from cracks in the ocean floor

______________ Indicate whether the statement is true or false.

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Which of these is the most diverse group of plants?

a. gymnosperms b. ferns c. nontracheophytes d. angiosperms e. conifers

Biology & Microbiology