Question

unit 4 test
if two muscles are antagonistic, what does that mean?
they work together
they work in opposition of each other
they perform the same motion at different times
they are located on the same side of a limb

Explanation:

Antagonistic muscles work in opposition. For example, when one muscle contracts (agonist), the other (antagonist) relaxes. This opposition allows for smooth movement. "They work together" is incorrect as that's synergistic muscles. "They perform the same motion at different times" is not the definition. "They are located on the same side of a limb" is also wrong as antagonistic muscles are on opposite sides (e.g., biceps and triceps on the arm).

Answer:

they work in opposition of each other