★ Heart Anatomy Quiz
Valves in veins
A. support them
B. protect them
C. prevent the backward movement inside them
D. provide them elesticity
Select your answer:
Topics:
SSTI and Bone Infections Factors that Affect Health and Wellness Skin and Derivatives Human Excretory System Shoulder Sensory System Key Terms Your Body Composition of Blood and Blood Cells Cardiovascular System Healthy Foundations Environment The Ankle and Lower Leg Organelles Histology of the Ear Muscular SystemOther quiz:
Human Body › ViewIs a healthy person someone who gets many diseases?
A. TRUE
B. FALSE
Biochemistry › View
If an atom has 15 protons, 16 neutrons, and 15 electrons, what is its:
A. Atomic number: 15, Mass number: 31
B. Atomic number: 16, Mass number: 31
C. Atomic number: 15, Mass number: 30
D. Atomic number: 31, Mass number: 15