How Many Muscles Does The Human Body Have On Average? 300 400 600 700 Did You Know! Just like fingerprints, no two people have the same foot structure or footprint….

What Is The Body's First Line Of Defense Against Infection? Skin White blood cells Antibodies Bone marrow Did You Know Your feet have about 250,000 sweat glands, making them one…

Which Of These Is A Risk Factor For Type 2 Diabetes? Regular physical activity High sugar intake Eating lots of fruits and vegetables Healthy body weight Did You Know! Each…

Which Organ Is Mainly Responsible For The Production Of Red Blood Cells? Heart Veins Kidneys Bone marrow Did You Know! The endocrine system and the immune system often work together…

Which System In The Body Is Responsible For Transporting Nutrients? Nervous system Circulatory system Endocrine system Digestive system Did You Know! The hypothalamus, a small region in the brain, plays…

What Is The Body's Natural Defense Against Harmful Microorganisms? White blood cells Antibodies Immune system All of the above Did You Know! Hormones are chemical messengers that can affect virtually…

What Type Of Doctor Specializes In The Treatment Of The Heart? Neurologist Cardiologist Orthopedist Dermatologist Did You Know! Although the human small intestine appears compact when you look at it,…

What Is The Term For A Condition Where Bones Become Brittle? Osteoarthritis Osteoporosis Scoliosis Rheumatoid arthritis Did You Know! The human skeleton is made up of about 206 bones, and…

Which Of These Is A Function Of White Blood Cells? Carry oxygen Produce insulin Fight infections Regulate blood pressure Did You Know! Each of these cells plays a specific role…