21Which organ purifies the blood by removing urea?AKidneyBLungsCHeartDLiverView AnswerDiscussWorkspaceReportSaveEasy
22Which blood vessels carry blood away from the heart?AVeinsBArteriesCLymph vesselsDCapillariesView AnswerDiscussWorkspaceReportSaveEasy
23Which blood group is called the universal donor?AAB positiveBB negativeCO negativeDA positiveView AnswerDiscussWorkspaceReportSaveEasy
24Which part of the brain controls balance and coordination?ACerebellumBMedullaCCerebrumDHypothalamusView AnswerDiscussWorkspaceReportSaveEasy
25Which is the largest gland in the human body?APituitaryBLiverCPancreasDThyroidView AnswerDiscussWorkspaceReportSaveEasy