Question Detail Influenza is caused by ? FungusBacteriaVirusAlgae Answer: Option C Similar Questions : 1. Venom of cobra attacks on ? Digestive systemNervous systemCirculatory systemRespiratory system Answer: Option C 2. What is pH value of human blood ? 77.27.47.8 Answer: Option C 3. Phloem tissue is found in ? PlantsInsectsMammalsAll of above Answer: Option A 4. Rubber is obtained from ? cell saplatexgunresin Answer: Option B 5. Normal human blood is : NeutralAcidicAlkalineNone of above Answer: Option C Read more from - Biology Questions Answers