Identifying Benefits of Social Behavior What are the benefits of social behavior? Check all that apply.
protection
foraging
competition
reproduction
division of labor

Which of the following correctly list the first appearance of organism in the fossil record from earliest to most recent

Which is it a characteristic of the animal kingdom? a. they include both vertebrates and invertebrates b. their skin is covered with hair or fur c. they are heterotrophs d. they are eukaryotic

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures