A process oriented lesson on how biomolecules are used by organisms to build tissues and maintain life. Focus is on chemistry and bonds withing molecules.
Students read about how elephant populations declined over a century due to the ivory trade and how international laws attempt to protect elephants. A video shows how female elephants in some areas have evolved the tuskless trait in response to selective pressure from poaching.
This activity combines literature with science as a fun way to show students how important it is to make good observations in science.