A. Importance, <em>hope it helps</em>
Supply refers to the number of goods that are available. Demand refers to how many people want those goods. When the supply of a product ascends, the price of a product descends, and demand for the product can rise because it costs less. At some point, too much of a demand for the product will cause the supply to lessen. A fundamental economic principle that when supply exceeds demand for a good or service, prices fall. When demand surpasses supply, prices tend to rise. There is a flip-side relationship between the supplies and prices of goods and services when demand is not changed.
Answer:
D. Fossils of early tetrapods have many features that are very different than whales of today
Explanation:
I would say this is the correct answer because it pertains to the fossil record providing proof that the tetrapods evolved from whales. This explains why they are very different than whales nowadays despite the fact that they have a shared ancestor. The answer you have chosen is too vague.
