1.) Why would a large number of cyanobacteria potentially be harmful to an aquatic ecosystem?
2.) describe the idea of endosymbiosis. What evidence(give 2 ideas) is there that eukaryotes evolved from prokaryotes?
3.) A Diatom is a many nucleated cell within one mass of cytoplasm. True or False, If false, make the statement true.
4.) describe the biological concept of a species.
5.) Describe 5 reproductive barriers that keep species separate. Give an ex for each.
6.) List the 5 kingdoms.