ANSWER: Different cells have<span> different jobs to </span>do<span>. Each </span>cell has<span> a size and shape that is suited to its job. </span>Cells<span> that </span>do<span> the same job combine together to form body tissue, such as muscle, skin, or bone tissue. Groups of different </span>types of cells<span> make up the organs in your bodies, such as your heart, liver, or lungs.</span>
