Quantity that does not change

What are the 3 types of artificial cloning

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.

True or false 5. carrier proteins have the ability to to change shape and physicially move molecules across the cell membrane. 6. in a facilitated diffusion, the concentration of the molecules to be moved across the cell membrane is higher inside the the cell.