Question

complete the sentence.
some ____ carry signals that tell ____ to contract.
nerves... tendons nerves... muscles
tendons... nerves muscles... nerves

Explanation:

Nerves are responsible for transmitting signals. Muscles contract in response to these signals. Tendons connect muscles to bones and do not receive contraction signals directly from the nervous system in the way described. Muscles do not carry signals to nerves for contraction; rather, it is the reverse - nerves signal muscles.

Answer:

nerves... muscles