A. the distribution of sand on an ocean floor
Answer:
All animals alike as heterotrophs beacuse animals cannot prepare their own food.
Explanation:
Heterotrophs may be defined as the organisms that will depend upon plants or other animals for their food. They are unable to synthesize their own food.
All animals are heterotrophs as they depends on the other organisms for the production of food. All animals are also referred as consumers.
I believe it’s B sorry if it’s wrong
As the sun heats the surface of the oceans, two layers of water result. These layers are separated by the Thermocline.
so your answer is thermocline.