You are given a sentence and your task is to generate another sentence that supports the given input.

Input: Consider Input: There are three types of passive transport they are diffusion, osmosis and facilitated diffusion.

Output: Because the solute is moving down the concentration gradient, and no input of energy is required, facilitated diffusion is considered a(n) passive type of transport.

Input: Consider Input: but when the earth s surface reradiates energy back to space, a significant portion of this thermal radiation is absorbed and reradiated by the atmosphere s CO 2 molecules back to the earth s surface, incrementally warming the planet.

Output: Gases such as co2 and methane can trap thermal energy in earth's atmosphere before radiating it into space.

Input: Consider Input: Sperm cells are usually motile, having a single flagellum .
Output: In humans, the sperm cell is the only cell with the flagella structure that enables motility.