AP BIOLOGY

Detailed explanation-1: -Embryology: Embryology is the study of the formation and development of embryo and foetus. Embryology is used as one of the evidences of evolution. Comparative study of embryos in vertebrates shows that there is lot of similarity in them at the initial stages whereas this similarity decreases gradually.

Detailed explanation-2: -Embryology is the study of, you guessed it, embryos. The same groups of cells develop in the same order for these species despite the fact that adult forms of the species look very different.

Detailed explanation-3: -Comparative embryology is the branch of embryology that compares and contrasts embryos of different species. It is used to show how all animals are related. Many things are compared (such as whether or not the organism has a notochord or gill arches).

Detailed explanation-4: -Embryology includes the study of the formation of the embryo, its growth, and its development process of giving birth to a new individual. Comparative anatomy means the study of similarities and dissimilarities in the embryos of living organisms of different species.

Detailed explanation-5: -Embryology is important to understanding a species’ evolution, since some homologous structures can be seen only in embryo development. For example, all vertebrate embryos, from humans to chickens to fish, have a tail during early development, even if that tail does not appear in the fully developed organism.