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Chapter 19: 9-17

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Biology Homework Chapter 19: Primates


Reading Preparation

Textbook assignment:Chapter 19: Primate Evolution, sections 13-19.

Study Notes

Until the last ten years or so, Hominid referred to members of the Hominidae family in Linnaean taxonomy, and included humans but not chimpanzees, orangutans, or gorillas, which had their own family, Pongidae. With the progress in DNA sequencing and the realization that orangutans are more distantly related to gorillas and chimps than these two groups are to humans, there was shift to a new classification breakdown. Hominidae now includes all the great apes, and is broken down into subgroups that recognize the range of relationships from the closest-to-human chimpanzees to the furthest-from-human orangutans. The subfamily containing humans and the African great apes is further broken down into tribes, and Hominini includes only humans and their forebears (Neanderthals, homo erectus, some species of Australopithecus). Hence, in talking of the ancestors of homo sapiens, the appropriate term is now hominin, not hominid.

Web Lecture

Read the following weblecture before chat: Human Evolution

Take notes on any questions you have, and be prepared to discuss the lecture in chat.

Study Activity

Perform the study activity below:

Watch the film on Great Transitions: Human Origins, then use the click-and-Learn to become familiar with the current theories on human evolution based on the fossil records available.

Chat Preparation Activities

Chapter Quiz

Lab Work

Read through the lab for this week; bring questions to chat on any aspect of the lab, whether you intend not perform it or not. If you decide to perform the lab, be sure to submit your report by the posted due date.