Question Detail In a human body, the basic building block are MusclesNervesCellsBones Answer: Option C Similar Questions : 1. Plants absorb dissolved nitrates from soil and convert them into : Free nitrogenUreaProteinsAmmonia Answer: Option A 2. Quinine is extracted from the bark of : NeemCedarEucalyptusCinchona Answer: Option D 3. Who invented Vitamin ? F.G. HopkinsMc. CollumHolstRonald Ross Answer: Option AExplanation:Mc. Collum invented Vitamin A, Vitamin B and Vitamin D Holst invented Vitamin C Ronald Ross invented Malaria parasite and treatment. 4. Liver is largest gland of Human body ? TrueFalse Answer: Option AExplanation:Its weight is approx 1.5 - 2 kg 5. Most highly intelligent mammals are : elephants whales dolphinskangaroos Answer: Option C Read more from - Biology Questions Answers