What is the science that deals the study of human beings?

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates