One Effect of Aging on the Skeletal System Is

question 73

Multiple Choice

One effect of aging on the skeletal system is

• A) decreased bone matrix.
• B) increased bone density.
• C) decreased collagen fibers.
• D) increased elastic fibers.
• E) Both "decreased bone matrix" and "decreased collagen fibers" are correct.

---

Definitions:

Spontaneous Recovery

The reappearance of a previously extinguished conditioned response after a pause.

Stray Dog

A dog that lives on the streets and is not owned or cared for by a specific person.

Extinction

The gradual reduction and eventual disappearance of a conditioned response following the removal of reinforcement.

Fear

An emotional response to perceived threats, leading to a fight-or-flight response.