With age, muscles can become weaker. this is due to a. connections between nerves, which cause more pain and therefore less use. b. damage from everyday use and injuries that accumulate over time. c. disconnections between motor nerves and muscle fibers. d. difficulties that occur during muscle growth and repair.

C.

disconnections between motor nerves and muscle fibers

answer; /// i believe the correct answer is (analogue);

delegated (sometimes called enumerated or expressed) powers are specifically granted to the federal government in article i, section 8 of the constitution. this includes the power to coin money, to regulate commerce, to declare war, to raise and maintain armed forces, and to establish a post office.