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A bone includes

When you are exposed to bright light, a reflex is initiated and your iris constricts to decrease pupil size.  Which structure serves as a receptor in this system?

There are two types of synapses, based on mode of communication. What are they?

The connective tissue wrapping that surrounds bundles (fascicles) of axons is the

Our calf muscles contract to cause plantar flexion, resembling the lever system of a wheelbarrow. Therefore, it is a _______ -class lever.

Noncompetitive inhibition of an enzyme occurs when the inhibitor binds to the

The hydrogen bonds in a sample of water result in ________ cohesion and a _____ heat of vaporization.

Apoptosis is best described as

The glial cell that defends the body against pathogens is the

The presence of an enzyme within a chemical system