Nutrients can be classified as essential or nonessential. All of the following are reasons why a nutrient could be considered an essential except

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

Can a trait be both polygenic and have multiple alleles? explain why or why not.

Do fish feel pain? and if they do what pain