Q: In vertebrates, a system of what structures attached to the endoskeleton enables movement?


Read this paragraph and choose the correct option from the provided answers:

Vertebrates have a system of muscles attached to the endoskeleton to enable movement. Muscles control movement by alternately contracting (shortening) and relaxing (lengthening). Generally, muscles work together in opposing pairs.

 Choices:

- nerves

- tendons

- tissues

- muscles


A:
muscles