What types of molecules cannot easily go through the cell membrane

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

The images show the wings of a bat and a bee. from this evidence, what can you conclude about the evolutionary relationship between these organisms? a. the wing structures of the bat and the bee are different, indicating they didn’t inherit wings from a common ancestor. b. the wing structures of the bat and the bee are different, indicating they inherited wings from a common ancestor. c. the functions of bat wings and bee wings are the same, indicating they obtained wings from a common ancestor. d. the functions of bat wings and bee wings are different, indicating they didn’t obtain wings from a common ancestor.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above