Which of these algae are used to prepare a medium for bacterial culture?
a. red algae
b. green algae
c. diatoms

Adaptive radiations can be a direct consequence of four of the following five factors. select the exception. a) vacant ecological niches b) genetic drift c) colonization of an isolated region that contains suitable habitat and few competitor species d) evolutionary innovation e) an adaptive radiation in a group of organisms (such as plants) that