Answer:
Explanation:
Ok first. Are you from mr.goodfriend's class? cause i know a safina and you questions are almost the same as the quiz thats due tommorow. Oh and it's b i think
The answer that would best complete the given statement above would be the second option: MUSCLES. Contractile proteins are found in muscles. <span>The muscles themselves contain muscle fibers, each of which contains cylindrical strands of </span>contractile proteins <span>called myofibrils. Hope this answers your question.</span>
The answer is B hope this helps you:) I did this test yesterday
A microscope hope i helped