All define the cell theory except:
a. cell is the most basic unit of the universe
b. all organisms, including viruses, are composed of cells
c. all cells come from any form of matter
d. yeah, i do not see the answer anywhere

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen