Agroup of students are 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? a gene mutation in action b gene flow at work c genetic drift as it happens d natural selection in progress

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

i think the answer would d