Answer: The only life process a virus undergoes independently is reproduction to make copies of itself, which can only happen after they have invaded the cells of another organism. Outside of their host some viruses can still survive, depending on environmental conditions, but their life span is considerably shorter.
Explanation:
C is the correct answer to this question
A solution that is:
Isotonic to the cell would cause no visual changes as the rate of water entering the cell is equal to the water exiting the cell.
Hypotonic to the cell would cause the cell to shrink, as water exits the cell to dilute the higher solute concentration outside the cell.
Hypotonic to the cell would cause the cell to swell, as water enters the cell to dilute the higher solute concentration inside the cell.
Mesophyll carries out the process of photosynthesis
For Moon, the letter would be A.
For Planet, the letter would be C.
For Solar System, the letter would be B.
For Comet, the letter would be D.
