Which of the following is not part of the cell theory?

a. every living thing is composed of cells.
b. cells come from preexisting cells.
c. cells are the basic unit and structure of all living things.
d. every cells have a nucleus that contains genetic material.

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.