Full Definition of AVERAGE. 1. a: a single value (as a mean, mode, or median) that summarizes or represents the general significance of a set of unequal values b: mean 1b. 2. a: an estimation of or approximation to an arithmetic mean.ull Definition of AVERAGE. 1. a: a single value (as a mean, mode, or median) that summarizes or represents the general significance of a set of unequal values b: mean 1b. 2. a: an estimation of or approximation to an arithmetic mean.
Comparative anatomy is the study of the relatedness of species through examining anatomical structures. Some structures, like homologous structures indicate two organisms shared a recent common ancestor, like the arm bones in humans, bats, whales and birds.
Anatomy is a branch of biology that deals with the structure of plants and animals. Comparative anatomy is a related field in which the structures of different animals are studied and compared. There are three main areas of anatomy: gross anatomy deals with organs and organ groupings called systems that are visible to the naked eye; cytology is the study of cell structure; and histology examines the structure of tissues.