Two semelparous species of fish lay about 100 eggs when reproducing. One reaches reproductive age a year before the other. Assuming there is no competition for resources in the lake they inhabit (population density is low), which species has higher fitness?
A. The species that reproduces earlier has higher fitness, as their genes will spread faster
B. The species that reproduces later has higher fitness as they also live longer
C. Both have the same fitness as they lay the same number of eggs
Answer: A. The species that reproduces earlier has higher fitness, as their genes will spread faster
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