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why do computers use binary code

The ones and zeros of binary code are the native language of computer chips. ... read more

matter

Matter is anything that takes up space and has mass. Atoms or parts of atoms form all matter. It is everything from the tiniest electron to the planets and stars. ... read more

motion and force

Motion ... read more

what is an animal

Animals are living creatures. They include very small creatures such as dust mites and very large creatures such as whales. Animals are multi-cellular organisms that eat food to survive. They cannot get energy from the sun like plants do. Most animals can move on their own. ... read more

the life cycle

The stages of human life are often described as a life cycle. For each individual, however, life is a straight line. Like a story, it has a beginning, middle, and an end. The earliest stage of life is a single cell. The cell divides and, with instructions from genes, forms different tissues. These tis... read more