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Muscle Tissues Cell and Tissue Parts of the Skin Laboratory Careers Proteins, Amino Acids, & Enzymes Tib/Fib, Knee and Femur DNA Urinary System Renal Replacement Therapies Pulmonology/Respiratory Anatomy - Cellular Respiration Carbohydrates, Proteins and Lipids Skull Reproductive System Vocabulary Biological Molecules

Other quiz:

Human Body Systems › View

This makes acids to digest food and has muscles to mix food with acids.

A. esophagus

B. heart

C. brain

D. stomach

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Immune system › View

Which statement about antibodies is correct?

A. antibodies are polypeptides

B. antibodies are produced by bone marrow

C. antibodies are pathogenic foreign substances

D. antibodies kill bacteria but not virus

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