Answer:
cell membrane is like doors and windows!!
Hope this helps!
Explanation:
Vertebrates have a back bone. They have living endoskeleton, pharnyx and efficient respiration, advanced nervous system, and paried limbs.
It's purpose is to break down energy from carbohydrates and other organic molecules stored during photosynthesis
Hello,
Placing a rat in a cage where electrical shocks over which the rat has no control are occasionally administered through the floor is a way to create → <span>learned helplessness
Good luck :)</span>
That we all came from a common ancestor.
