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foods that conform to the rules of the Jewish religion.
a small, circular opening in the exoskeleton of insects that allows air to enter the insect's...
a microscopic hair-like extension of the cell membrane of the epithelial cells forming the outer...
external opening of the rectum (part of the mammalian digestive tract) through which faeces are...
process whereby excess amino acids are broken down in the liver to form urea.
two bean-shaped guard cells surrounding a pore in the epidermis of a leaf that allow gases to...