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Myocarditis Hematology Circulation and Excretion Carbohydrates, Proteins and Lipids Nutrition - Digestive System Ortho Infectious Disease Renal and Gastrointestinal System Muscoskeletal Injuries Immunology IBD Medical Vocabulary Nervous & Endocrine Systems Branches of Microbiology Surgical tech-safety Renal & Neural Biochemistry/Cells

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Cell Theory and Microbiology › View

What did Theodor Schwann contribute to cell theory?

A. He discovered the cell nucleus.

B. He proposed that all animals are made of cells.

C. He identified the cell membrane.

D. He was the first to observe living cells under a microscope.

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Nutrition - Digestive System › View

The food passes through the digestive system by

A. the action of villi

B. peristalsis

C. gulping

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