Biology GK Questions Quiz-49

961. Blood does not coagulate inside the body due to the presence of (1) Plasma (2) Haemoglobin (3) Heparin (4) Fibrin Answer: 961. (3) Heparin is a naturally-occurring anticoagulant produced by basophils and mast cells. Heparin acts as an anticoagulant, preventing the formation of clots and extension of existing clots within the blood. Heparin is present in the walls of blood vessels where it doesn’t allow blood to clot. 962. Leech is an ectoparasite on cattle, which is (1) Carnivorous  (2) Omnivorous (3) Sanguivorous  (4) Herbivorous Answer: 962. (4) A herbivore is an organism anatomically and physiologically adapted to plant material, for example foliage, as the main component of its diet. Cattle are herbivorous animals. 963. How many chambers does a mammalian heart have ? (1) 4  (2) 1 (3) 2  (4) 3 Answer: 963. (1) Most mammalian hearts are structured similarly to the human heart. There are 4 chambers found within the mammalian heart: the left atrium, right atrium, left ventricle, and right ventricle. …