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>
Energy<span> cannot be created or destroyed, but it </span>can be saved<span> in various forms.
</span>The term that denotes <span> the capture of energy produced at one time for use at a later time is energy storage.
Thermal energy might be saved up for future use.
</span>Thermal storage is used for electricity generation<span> by using power from the sun, even when the sun is not shining</span>
Fossils give evidence upon organisms the past are not the same as those found and demonstrate a progression of evolution.
