Question

which of the following best defines muscles?
a. long flexible tendons that connect bones
b. tough strong tissues that provide energy to perform physical activities
c. thick fibrous cartilage that act when sent electrical signals
d. smooth long fibers that are controlled by the skeletal system

please select the best answer from the choices provided.

○ a
○ b
○ c
○ d

Explanation:

• Option A: Tendons connect muscles to bones, not the definition of muscles. Eliminate A.
• Option B: Muscles are tough, strong tissues that enable physical activities by contracting and providing the force/energy for movement. This matches muscle function.
• Option C: Cartilage is a different connective tissue, not muscle. Muscles respond to electrical signals but are not cartilage. Eliminate C.
• Option D: Smooth muscles (e.g., in organs) are not controlled by the skeletal system (skeletal muscles are, but smooth muscles have different control). Also, "smooth long fibers" is an inaccurate general description. Eliminate D.

Answer:

B. tough strong tissues that provide energy to perform physical activities