Differences in physical traits or behaviors among individuals of the same species is A. speciation
B. population
C. fertilization
D. variation
Differences in physical traits or behaviors among individuals of the same species is
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The correct answer is D. variation.
Variation refers to the differences in physical traits or behaviors among individuals within the same species. This can include differences in size, color, shape, and even behavioral characteristics, and is a key concept in understanding evolution and natural selection.