★ Human Circulatory System Quiz
How does the heart work?
A. It pumps blood first to the lungs, back to the heart and then around the rest of the body.
B. It pumps blood first to the rest of the body, back to the lungs and then to the heart.
C. It pumps blood around the rest of the body, back to the heart and then to the lungs,
Select your answer:
Topics:
Sense of Sight SSTI and Bone Infections Macromolecules Cardiovascular Adaptation Refresher Visual Impairment SPED Law-lympics Human Eye and Colourful World Vet Terminology Abnormal Psychology; Assessment and Diagnosis Cancer & Cell Cycle Muscle Tissue Cell Structure and Function Concept Human Organ System Prokaryotic Cells and Viruses Cell BioOther quiz:
Healthy Lifestyle › ViewWe are recommended to exercise at least ____ a day
A. 50 minutes
B. 10 minutes
C. 15 minutes
D. 30 minutes
Genetics and Probability › View
Scientists call an organism with two different alleles for a trait
A. factor
B. purebred
C. trait
D. hybrid