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Advanced Stretching SM2 Food System & Nutrients The Cardiovascular System: Blood Vessels and Hemodynamics Respiratory System Med Term Nutrition & Wellness Disease Cards Carbohydrates, Proteins and Lipids Illness and Symptoms Health Unit Coordinating Bacteria and Protist Review Biochemistry Pathophysiology Pediatrics Enzymes and Movement of Substances Pharmacology Vitamins

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Microorganism - Diseases › View

Which observation supports the claim that microorganisms are helpful to ecosystems?

A. Microorganism are to small to been seen without special equipment.

B. Microorganism need water and energy to survive.

C. Millions of microorganism can often be found in soil.

D. Microorganisms break down dead plants and animals, making nutrients available.

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Transportation › View

What takes blood back to the heart?

A. arteries

B. veins

C. capillaries

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