26The normal human body temperature is about:A98 °CB40 °CC35 °CD37 °CView AnswerDiscussWorkspaceReportSaveEasy
27Red blood cells are mainly produced in the:ASpleenBBone marrowCLiverDHeartView AnswerDiscussWorkspaceReportSaveEasy
28The image in the human eye is formed on the:AIrisBPupilCRetinaDCorneaView AnswerDiscussWorkspaceReportSaveEasy
29The total volume of blood in an adult human is about:A10 litresB1 litreC15 litresD5 litresView AnswerDiscussWorkspaceReportSaveEasy
30Which gland is called the 'master gland'?APancreasBAdrenal glandCPituitary glandDThyroid glandView AnswerDiscussWorkspaceReportSaveEasy