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Cnidarians have specialized stinging cells called cnidocytes
The anterior pituitary is sometimes called the master gland because it secretes many hormones that r
Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i
Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve
Five layers or sheaths called koshas in Ayurvedic philosophy.