Question

a group of students is walking in the park, and one of them takes a picture of a pollen grain that is being blown by the wind. what caption can the student use for this picture?
gene mutation in action
gene flow at work
genetic drift as it happens
natural selection in progress

Explanation:

Gene flow refers to the transfer of genetic material from one population to another. Pollen grains being blown by the wind can carry genes from one plant population to another, which is an example of gene flow. Gene mutation is a change in the DNA sequence. Genetic drift is a change in allele frequencies due to random sampling. Natural selection is the process where organisms better adapted to their environment tend to survive and reproduce.

Answer:

gene flow at work