Select your answer:
Topics:
Tissues Vocabulary Digestive System Vitamin Cardiovascular System Terminology Wellness Vocabulary Receptors Cell and Tissue Genes, Chromosomes and Genome Bones and Muscles Lifestyle Diseases Heart Structure and Double Circulation Life Processes Excretion Kidney - Loop of Henlé Anatomy & Physiology: Respiratory Food and NutritionOther quiz:
Life Processes › ViewDiffusion is a major method of transport of materials in
A. tall plants
B. unicellular plants
C. Multicellular plants
D. Both (b) and (c)
Cardiovascular System › View
What is the main function of valves in the circulatory system?
A. To pump blood throughout the body
B. To prevent blood from moving in the wrong direction
C. To prevent platelets from clotting the blood
D. To keep the body stable