Question

match parts of the skeleton with the organs they protect.
instructions
skull
rib cage
pelvic girdle
heart
internal reproductive organs
ears

Explanation:

The skull protects the brain and ears (partially, as the outer - ear is more exposed but the middle and inner ear are protected by the skull). The rib cage protects the heart and lungs. The pelvic girdle protects the internal reproductive organs.

Answer:

Skull - Ears
Rib cage - Heart
Pelvic girdle - Internal reproductive organs