Which of the following is included in the cell theory?
(there's 3)
a. the basic unit of life is the cell.

b. cells come from preexisting cells

c. all living organisms are composed of cells.

d. pond water is made of cells.

C (All living things organisms are composed of cells)

Explanation:

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

i think it is dna, i'm not totally sure but i think it might be.