C. Homeostasis
D. M
9. This is that which contains all life on earth.
A. biosphere
B. ecosystem
C. community
D. earth
10. This is a chemical structure consisting of two or more
A. molecule
B. mixture
C. solution
D. atomic numb
11. This is the fundamental unit of structure and function
A. cell
B. tissue
C. organ
D. organ system
12 This is a tyne of cell that lacks a true nucleus and me​