5.What are homologous structures, and what do they show about relatedness?
6.Why do humans and chicks develop similarly to reptiles?
7.What do DNA mutations have to do with amino acid changes in a protein?
8.How can antigen-antibody reactions help determine the degree of relatednessbetween species in this laboratory?. The relatedness of an animal to humans was
9.Using plus (+) symbols, show the amount of reaction you would expect when a pig, monkey, and chimpanzee are tested for the same human antibody-antigen reaction.
10.Define the following types of evidence for evolution: