Evolutionary trees are used in biochemistry to show how certain proteins are related and when they came into existence. below is an evolutionary tree for the made-up protein family, saplin. label the tree according to the statements about the protein family members, then answer the three questions.

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except

Which nucleotide component contains nitrogen

Which characteristics are typical of a human population in the postindustrial stage?