I think the answer is A) policeman
because one of the cell walls functions is to protect the cell and control what enters and what leaves
Answer:
The correct answer is - photosystem II.
Explanation:
Photosystem II is a specialized protein complex that traps the light energy from the sunlight and utilizes it to transfer electrons to Pq from water, which ultimately helps in the production of oxygen.
As we know photosystem II helps in production and cyanobacteria were the primitive organism it is considered as after the development of the photosystem II, cyanobacteria begin the aerobic life.
Thus, the correct answer is - Photosystem II.
Answer:
Helium and carbon dioxide
The sun! It's solar radiation heats our planet, gives us light, and sustains life.