What is cell theory? A)That life is spontaneous b)That life comes only from air
C)That life comes only from existing cells
D)Life is the result of metamorphosis

C

Explanation: In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.

What have scientists learned about plant behavior by studying the dodder plant