Exam 22: The Evolution of Primates

Describe the difference between Hominoids and Hominins and list one to two representatives of each.

The first hominin to have enough uniquely human features to be placed in the same genus as modern humans is Homo erectus.

The _______________ is an organ that exchanges materials between the mother and the developing embryo/fetus inside the uterus.

Which of the following appeared about 600,000 years ago and existed until about 300,000 years ago, and may have descended from H. antecessor ?

The Ardipithecus is a(n) ______ that is close to the "root" of the human family tree.

Which of the following is the hole in the base of the skull for the spinal cord, located in the rear or base of the skull?

Genetically speaking, humans share roughly what percentage of DNA sequences with gorillas?

Compare Homo habilis and Homo neanderthalensis (a pair of hominids), including their morphology, social development, and tool making.

What distinguishes the gorillas and chimpanzees from the orangutans and gibbons?

Opposable thumbs were an adaptation of primates that enabled them to live in trees.

What is the shared primate characteristic depicted in the accompanying figure?

Which hominoids may have given rise to the apes and humans?