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simple epithelium with elongated, cells that lines the stomach, small intestine, urethra, vas deferens (sperm duct), prostate gland and part of the uterus.
in plants: the female reproductive organ of the flower where the ovules are formed.
undifferentiated cells found in almost all organisms that have the ability to develop into any...
an aerobic respiration in animal cells resulting in the formation of lactic acid.
mass extinction event of 250 million years ago, in which about 90% of all species on Earth died...