AP Biologyeasymcq1 pt
What is the best measure of an individual's fitness?
A.Its relative reproductive success
B.Its physical strength
C.Its lifespan
D.Its size
Explanation
Core Concept
Fitness counts offspring that survive to reproduce — not strength, speed, or lifespan. Genes left in the next generation are the only currency.
Correct Answer
AIts relative reproductive success
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