GEOL 1314 Assignment 15 Early Humans Using the Becoming Human website: a. Give t

Question

GEOL 1314 Assignment 15 Early Humans Using the Becoming Human website: a. Give the age range and list the following hominids in order from oldest (1) 1. to youngest (7) 1.) Ardipithecus camidus (4.4 milion years ago) 2.) Australonitheus atarenis (3.9-3 million years ago) 3.) Homo babiis (1.9-1.8 million years ago) 4.) Homo erectus (1.8 million years ago-300,000 years) 5.) Homo udoltensis (1.9 milion year ago) 6.) Neanderthals (150,000-30,000 years ago) 7.) Homo sapiens (100,000 years to present) 2. The Chromosome Connection. List the order from closest-out the primates that are related to humans. 3. Building Bodies: build the skeletons then list the differences between a chimpanzee and human skeleton. 27

Explanation / Answer

2) Answer: Closes-out primates related to human are adult chimpanzees and orangutans.

3) Answer:

Chimpanzees small, low braincase; skull sits forward of the spine; pronounced brow ridge is present; sexual dimorphism in canines is greater

Human high rounded braincase: skull balanced directly over the spine; brow ridge is not prominent; sexual dimorphism in canines is smaller

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