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This is a free sample preview of the essay
Homo Aquaticus?
Beginning of essay
I. Introduction
When the human brain is compared with the brains of apes there are several
obvious differences; the centers for the sense of smell and foot control are
larger in apes than in humans, but the centers for hand control, airway control,
vocalization, language and thought are larger in h ....
Middle of essay .... leave tthe brain. The pre-central area is called
primary motor cortex, and also "Area 4" in primates.
III. Human and Chimp Cortex Differences
In humans Area 4 is almost twice as large as it is in chimpanzees. The
part of Area 4 that commands the movement of the leg, foot and toes is smaller
in humans than apes. This leaves more room for the part that controls the hand,
fingers and thumb. Even bigger is the lower part of human Area 4, related to
the mouth and brething.... |
Number of words: 2003 |
Approximate pages: 8 |
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