<span>Animals are generally more scared of humans than humans scared of them. Mice and other familiar animals run when they sense danger. The faster they run, the more danger they likely feel. Even humans have a natural instinct to flee when sensing danger.</span>
<h3>Cells as Building Blocks</h3><h3>A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism. Thus, cells are the basic building blocks of all organisms</h3>
