Which structure is found mainly in green plants and bacteria?
O
A. Lysosome
O
O
B. Cell wall
C. Small vesicle
O
D. Mitochondrion

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

What are the two functions of the respiratory system