The answer is <span>B.ATP.
</span>Carbohydrate, lipids, and proteins consist of many C-H bonds which contain potential energy. When energy is needed immediately, those compounds broke down to different basic units. Those c<span>ompounds are broken down to produce the great</span> amount of energy in the form of ATP.
<span>I think the pKa for acetic acid is about 4.74. Therefore Acetic
acid/acetate buffer will work best at 4.74 +/- 1 pH unit and so the pH 8 is far
removed from that. Hence it would not buffer at that pH at all.</span>
Integumentary system I believe
The lists of the correct order of evolutionary history is Jellyfish, Reptiles, Mammals. This three are classified as vertebrates and all I know that almost all the animals we know are vertebrates. Jellyfish is a fish that do not have a backbones, example of reptiles is garter snake, there are so many mammals in the forest such as bat, rodent, bear and much more.
