A group of cells that performs<span> a similar </span>function<span> is known as a tissue. Multicellular organisms such as animals all contain differentiated </span>cells<span> that have adapted to </span>perform<span> specific </span>functions<span>. These differentiated </span>cells group<span> together to form tissues.</span>
Do performance testing prior to setting up your routine, stretch before and after each workout, get the proper amount of rest and nutrition, and modify your workout as needed.
I believe a. is the answer
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Your brain and heart hope this helps