Absence of vitamin c gives rise to? a. pernicious anemia b. rickets C. cataract d. beri beri which of the following is not soluble vitamin? a.ascorbic acid b.thiamine C.pyridioxine d.pantothenic acid

What causes the lub-dub sound of a beating heart? A. Heart valves closing B. Muscles sliding against the pericardial sac C. Blood being squeezed into the narrower pulmonary vessels D. blood hitting the walls of the aorta as the blood is sent through many different vessels When air is gulped into lungs like frogs do, it's called A. percussive pertosis B. dermal dialysis C. positive pressure breathing D. bronchial pertusion

If the bone marrow is damaged, what organ can perform extramedullary hematopoiesis?  A. Thymus B. Small intestine  C. Spleen  D. Tonsils

It has been reported that taking high doses of copaiba can cause symptoms of intolerance, nausea, vomiting, colic and diarrhea, and prolonged use may cause: Choose one answer. a. vision problems b. renal and liver damages c. brain damage d. heart and lung damages