Question Detail Which is not a part of blood ? RBCWBCPlasmaPlacenta Answer: Option D Similar Questions : 1. Pyorrhoea is a disease of the nosegumsheartlungs Answer: Option B 2. Venom of cobra attacks on ? Digestive systemNervous systemCirculatory systemRespiratory system Answer: Option C 3. Healing of wounds is hastened by vitamin ? CAED Answer: Option A 4. Who invented Polio Vaccine ? Harrison and SympsonJohan E. SalkLuvenhauk - LeeuwenhockKarl Landsteiner Answer: Option BExplanation:Harrison and Sympson invented chloroform, Luvenhauk - Leeuwenhock invented Bacteria, Karl Landsteiner invented Blood Transfer. 5. Mango contains which vitamins ? A and CB and CA and BB and E Answer: Option A Read more from - Biology Questions Answers