If a dog could produce its own food what kind of organism would it be

Which element provides strength to the exoskeleton of clams and oysters

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.

At which location in earth’s interior does the top density continue to increase as thickness decreases?