Population size Case study.

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Population size Case study. You perform a mark-recapture study to understand the population

size of slender salamanders (Batrachoseps attenuates) in Arcata, California. You initially catch and mark 15 individuals. In your second sample, you catch 20 individuals, and zero of them are marked. You estimate the total population size as A. 20 individuals B. 50 individuals C. 125 individuals D. 0 individuals E. You cannot be certain without more study or a larger sample