Anatomy evolution worksheet essay

One example in humans is the appendix. The appendix was once an enlarged part of the digestive system, used to digest leaves in primates who were herbivores. As evolution occured and the appendix was no longer needed, it shrank in size and function over a very long time.

It has long served as one of the main evidences for evolution, due to the fact that it is very concrete, and does not require extensive technology. A simple example of comparative anatomy is this: You look at two animals. They both have feathers, wings, and beaks. What type of animal are these two organisms?

Phylogeny is the evolutionary history of a species: a. b. The evolution of a species is dependent on changes in the genome of the species. Identify two mechanisms of genetic change, and explain how each affects genetic variation.

Today, the major pieces of evidence for this theory can be broken down into the fossil record, embryology, comparative anatomy, and molecular biology. Fossils This is a series of skulls and front leg fossils of organisms believed to be ancestors of the modern- day horse.