¿Cómo afecta la contaminación del aire generadas por las actividades humanas al sistema respiratorio de los seres vivos?

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

According to the cladogram, which organisms have roundworms as a common ancestor?

What would happen if the krill were removed from the food web