the brain and the spinal chord.
the practice and science of classification. This is the part of systematics that is only...
a small, corky pore or narrow line on the surface of the stem of a woody plant that allows the...
a foreign substance, usually a protein, that stimulates the production of one or more antibodies...
round or spherical-shaped bacteria.
(also called the carina) in birds is an extension of the sternum (breastbone) which runs along...
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