Which one is it?
a. CCACTGA
b. GGUGTAT
c. GGTGACT
d. TTAGATC

According to the cladogram, which organisms have roundworms as a common ancestor?

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

Afisherman is dragging his boat from the shore out into the ocean. match the following lists of areas he will move over in the correct order. continental rise continental slope continental shelf [tex]1.[/tex] [tex]2.[/tex] [tex]3.[/tex]