Question

the weakening of muscles that occurs with age is known as:
○ osteoporosis.
○ sarcopenia.
○ presbyopia.
● myocardia.

Explanation:

• Osteoporosis is a bone - related condition (bone density loss), not muscle weakening.
• Sarcopenia is defined as the age - related loss of muscle mass and strength, which matches the description of muscle weakening with age.
• Presbyopia is an eye - related condition (difficulty in near vision with age), not related to muscles.
• Myocardia (myocardium) is the heart muscle tissue, not a condition of muscle weakening with age.

Answer:

B. sarcopenia.