Because its members are so different from one another. Protists include microscopic organisms that are not bacterias, not animals, not plants and not fungis
Rotation<span> is when a planet or moon turns all the way around or spins on its axis one time. eg. A top that spind around its own axis or turning a screw.</span><span> </span>Revolution<span> is the movement of one object around a center or another object.</span>
The Sun<span> is the major </span>source of energy<span> for </span>organisms<span> and the ecosystems of which they are a part. Producers, such as plants and algae, use </span>energy<span> from sunlight to make food </span>energy<span> by combining carbon dioxide and water to </span>form<span> organic matter. This process begins the flow of </span>energy<span> through almost </span>all<span> food webs.</span>
