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foods that conform to the rules of the Jewish religion.
(also called the carina) in birds is an extension of the sternum (breastbone) which runs along...
middle body tissue layer that forms the muscular, circulatory and excretory systems.
a kingdom of very small, single-celled organisms without a nucleus. They reproduce asexually by...
membrane-bound compartments inside chloroplasts and cyanobacteria. They are the site of the...