Platyhelminths (flatworms) have practically no fossil record

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

The first amino acid of a new polypeptide chain is

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?