The iron-bearing protein/pigment in red blood cells that ...
A part of the nervous system that exercises control over ...
Most of the deep-sea floor lies at a depth of 16,500 ft. ...
A selfish gene which has so far only been found in flour ...
The opening in a vertebra through which the spinal cord ...
Of the neck. For example, the vertebrae of the neck are ...
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คำศัพท์
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