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Terms for The Skeletal System Nutrition Lipid Inflammation and Healing The Blood Respiration, Immune System, Blood Cells Movement and Locomotion Water Macromolecules My Teeth Microorganism - Diseases Nutrition - Digestive System Nutrition and Human Digestive System Bone Development and Remodeling Human Anatomy Blood Pressure Cells & Body Systems

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Biology › View

Cells make
A.     tissues.
B.     organs.
C.     systems.
D.     organelles.

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Hearing Impairment › View

What is the function of the ridges on your outer ear?

A. They prevent germs from entering your middle ear.

B. They direct sound into your middle ear.

C. They prevent loud noises from damaging your inner ear.

D. They filter out very high and low-frequency sounds.

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