Answer:
All living things can breathe air
Explanation:
Fishes dont breathe air, and yet theyre very much living things.
For question 3, it would not leak through the whole sandwich because the cell membrane is thick
A. The hemisphere of the Earth is tilted more toward the Sun.
Hey! they are usually single celled!
hope this helped xoxo
Greater then the water density, which has a density of 1 g/cm^3