Question

bio - 201 topic 4: skeletal and smooth muscle
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what are muscle fibers?
a type of connective tissue that helps in joining bones together.
a type of bacteria found in the human digestive system.
cylindrical cells that are capable of contracting and relaxing.
small sacs present in the lungs that help in respiration.
thin strands of hair - like structures present in the body

Explanation:

Muscle fibers are cylindrical cells that can contract and relax to enable movement. Connective - tissue joining bones is ligaments. Bacteria in the digestive system are gut - microbiota. Small lung sacs are alveoli. Hair - like structures are cilia.

Answer:

C. Cylindrical cells that are capable of contracting and relaxing.