As you already know, all things on the earth can be classified as either living or nonliving. Living things include animals, fungi, plants, and bacteria. Nonliving things include things such as water, rocks, and soil.
For the most part, it is easy to determine which things are living and which things are nonliving. Cats, trees, dogs, humans, and flowers are obviously living things. As time passes by, their bodies grow larger and their appearances change. It may be hard to tell whether or not some things are living. Molds and mildews may not seem like they are alive, but they most certainly are.
Living things are called organisms and there are certain things that separate living things from non living things. Living organisms can do at least one of the following: obtain energy with food intake, grow, release waste, respond to the environment around them, are able to reproduce, or have bodies made up of cells.
Some living things are cats, dogs, rabbits, birds, frogs, snakes, flies, butterflies, dragonflies, horseflies, human beings, trees, flowers, grass, fungus, mushrooms, and bacteria. Some examples of nonliving things are pebbles, water, soil, glass, gold, diamonds, silver, cups, spoons, forks, knives, door knobs, and cloth.
We, as humans, are obviously a good example of living things. We have all of the characteristics that describe a living organism. Humans eat food. Food gives humans energy. Humans release waste. Humans grow up and our bodies change over time. Humans respond to the environment around them. Humans are able to reproduce by giving birth to babies and humans have bodies that are made up of millions upon millions of cells.