Answer:
first question: 3. osmosis is a kind of diffusion that involves the movement of water
2nd question: 1. it allows carbon dioxide to move in and out of the cell
Explanation:
I believe it’s true, since Competition will occur between organisms in an ecosystem when both try to use the same resource and the resource is in limited supply. Animals compete for food, water and space to live. Plants compete for light, water, minerals and root space.
Cell transport is useful because it's, essentially, the movement of cells across the blood/veins. Active transport uses energy, while passive transport does not.