Technically, an animal can get carbon from any of these.
Carbon is present in all living things so if a shark ate a fish, they ate carbon. If a bear ate salmon, they ate carbon. If a cow ate grass, they ate carbon. As for the antelope, carbon dioxide has been found to be present in water as a dissolved gas.
If I were you I would probably go with the antelope though.
Answer:
D) lowering the energy for activation.
Explanation:
Just like chemical catalysts that accelerate the rate of chemical reactions, enzymes are biological catalysts that accelerate the rate of biochemical reactions.
Majorly, a catalyst works by lowering the activation energy required for a specific reaction. The lower the activation energy for a reaction, the faster the rate of that particular reaction.
Hence, an enzyme accelerates the rate of reaction by lowering activation energy of the reaction.
It would be rainforests because it obviously gets a lot of rain and the rain makes the humidity high.