Question

complete the sentence.
_________ are tough fibers that attach muscles to bones.
tendons
the small and large intestines
blood vessels
nerves

Explanation:

To solve this, we analyze each option:

• "Tendons" are known to be tough connective tissues (fibers) that attach muscles to bones.
• "The small and large intestines" are part of the digestive system, not related to muscle - bone attachment.
• "Blood vessels" are for transporting blood, not for muscle - bone attachment.
• "Nerves" are for transmitting signals, not for attaching muscles to bones.

Answer:

A. Tendons