271. Benzene is a major, component of?
(a) Nicotine
(b) Cigarettes
(c) Both of these
(d) None of these
272. Under resting condition, the rate of breathing is times, per minute?
(a) 10-20
(b) 12-20td
(c) 15-20
(d) 15-25
273. During exercise the, breathing rate increases up, to times per minute?
(a) 10-20
(b) 15-20
(c) 30-35
(d) 30-40
274. The main causes, of any cancer are?
(a) Carcinogens
(b) Emphysema
(c) Allergens
(d) Asthma
275. Tobacco smoke, contains more than carcinogens?
(a) 60
(b) 65
(C) 67
(d) 69
276. The removal of waste, products to allow the body to, work normally is called?
(a) Homeostasis
(b) Excretion
(c) Osmoregulation
(d) Thermoregulation
277. The maintenance, of internal temperature within a, tolerable range is called?
(a) Homeostasis
(b) Excretion
(b) Osmoregulation
(d) Thermoregulation
278. The ability of living organisms, to maintain or nearly maintain, constant internal condition?
(a) Homeostasis
(b) Excretion
(c) Osmoregulation
(d) Thermoregulation
279. High fever, cold and cough with sputum, production are symptoms of?
(a) Emphysema
(b) Pneumonia
(c) Asthma
(d) Bronchitis
280. Chemotherapy is a, treatment of?
(a) Emphysema
(b) Pneumonia
(c) Asthma
(d) Lung cancer
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