Which of the following statements regarding the movement of molecules across cell membranes is true?
A)In facilitated diffusion, a molecule is moved across a membrane against its
concentration gradient

B)Water molecules are commonly actively transported out of cells.

C)Three examples of passive transport are diffusion, facilitated diffusion, and osmosis.

D)Polar molecules generally diffuse more readily through the plasma membrane than do
nonpolar molecules of the same size.

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.

point counts

mark brainliest!

carbon traps heat so more of it makes it hotter causing global warming. during the ice age carbon levels in the atmosphere were low so it got very cold. so the common things between them is carbon levels in the atmosphere.