Question

18 multiple choice 2 points the mark-recapture method assumes that: the second sample is smaller than the first immigration increases during the study period marked individuals will reproduce at higher rates the marked individuals mix evenly back into the population

Explanation:

The Mark - Recapture Method is used to estimate population size. One of its key assumptions is that marked individuals mix evenly back into the population. If they don't mix evenly, the proportion of marked individuals in the second sample won't accurately represent the proportion in the whole population.

• The second sample size relative to the first is not an assumption (it's just part of the formula calculation).
• Immigration increasing during the study period would disrupt the estimate (it's an assumption that there is no immigration/emigration).
• Marked individuals reproducing at higher rates is not an assumption (assumes no change in birth/death rates related to marking).

Answer:

The marked individuals mix evenly back into the population.