Question

what are actin and myosin?
two proteins that are essential for nerve function.
two proteins that make up the cell membrane.
two proteins that are essential for muscle contraction.
two proteins that are involved in blood clotting.
two proteins that are involved in nerve signaling

Explanation:

Actin and myosin are key proteins in muscle cells. During muscle contraction, myosin heads bind to actin filaments and pull on them, causing the muscle to contract. They are not primarily related to nerve function, cell - membrane structure, blood - clotting, or nerve - signaling.

Answer:

Two proteins that are essential for muscle contraction.