Question

a3.3. define speciation and the role of genetic divergence among populations in creating new species. over time, a stream is diverted from a bend, creating an isolated lake. if you study the lake over your lifetime, at which of the following points in time after the lake’s creation would you expect to find the most genetic divergence between populations in the stream and the now - isolated lake populations? 1 year later 5 years later 10 years later 20 years later 30 years later

Explanation:

Genetic divergence occurs due to factors like natural selection, genetic drift, and mutation over time. The longer the populations are isolated (stream and lake populations), the more time there is for genetic changes to accumulate, leading to greater divergence. Among the options, 30 years later provides the longest time for these processes to act, so genetic divergence will be the most at this point.

Answer:

30 years later