- Life Sciences
biological, chemical, or physical agent that stimulates a characteristic function or causes a particular response, especially an inflammatory response.
animals that lack a cavity between the digestive tract and the outer body wall.
strengthened, elongated xylem cells that conduct water.
a strong ring of smooth muscle at the end of the pyloric canal which lets food pass from the...
teeth found at the back of the mouth just in front of the molars in the mammalian jaw, used for...