How old is our species homo sapiens

Which statement is most likely megan’s conclusion? the hypothesis is supported because the most common blood type in the united states is ab+. the hypothesis is not supported because the most common blood type in the united states is o+.

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

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.