24. The male gametes is called : *1 pointZygoteSpermTestis25. The individuals having both the sex organs are : *1 pointUnisexualBisexualMales26. The process of formation of an individual from the Zygote is called : *1 pointFertilizationDevelopmentGrowthOther:27. Childhood is the stage of growth which starts at the age of : *1 point1 year2 years3 yearsOther:28. The male hormone is : *1 pointTestosteroneProgesteroneEstrogenOther:29. Protruding part of the throat in boys at the age of Adolescence : *1 pointNoseAdam's appleHeadOther:30. Secretions of glands responsible for growth of pimples and acne : *1 pointSweat glandSebaceous glandAll of the above31. The period of life when body undergoes changes : *1 pointAdolescencePubertyGrowth32. The enlarged part of trachea : *1 pointVoice boxLarynxAll the aboveOther:This is a required question33. The vein that carries oxygenated blood : *1 pointPulmonary veinHepatic portal veinRenal veinOther:34. A lymphatic organ : *1 pointSpleenGall bladderLiverOther:35. The proteins produced by certain WBC in response to a foreign substances : *1 pointAntigensAntibodiesHaemoglobinOther:36. The contraction phase of the heart : *1 pointSystoleDiastoleJoint diastoleOther:37. Iron pigment present in erythrocytes : *1 pointChlorophyllHaemoglobinMyoglobinOther:38. Flight or fight hormone : *1 pointAdrenalinInsulinGlucagonOther:39. Chemical messenger in our body : *1 pointEnzymesHormonesBloodOther:40. Glands without duct : *1 pointEndocrine glandsExocrine glandsNone of the aboveOther:41. Glands with duct : *1 pointEndocrine glandsExocrine glandsNone of the aboveOther:42. It lowers the level of glucose in the blood : *1 pointInsulinGlucagonThyroxineOther:43. It raises the level of glucose in the blood : *1 pointInsulinGlucagonThyroxineOther:​