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The Six Characteristics of Living Things
Transcript of The Six Characteristics of Living Things
So as you can see, organisms have a lot in common. They all have cells, change in different environments, reproduce, have DNA, use energy, and grow and develop. Even as an adult, you will continue to change during your life.
Living Things Reproduce
Living things reproduce by sexual or asexual reproduction. In sexual reproduction, two parents create an offspring that have traits of both parents, which most plants and animals do. Others asexually reproduce by one parent that produces an offspring that is identical to the parent. Most single celled organisms and many multicellular organisms asexually reproduce.
Cells are an important part of the body, allowing you to perform the activities of life. They are what make up your body, and are are the basic materials that make up every living organism. Some organisms have trillions of cells, while others have one cell. Many cells do many different "jobs" like blood cells and nerve cells.
Living Things Respond to Changes
Living Things Have DNA
The cells of all living things have a molecule called deoxyribonucleic acid,(DNA). DNA carries the "instructions" for an organism's traits. When organisms reproduce, they pass copies of DNA to their offspring. DNA ensures that that the traits of the parents are passed, also known as heredity.
Living Things Use Energy
Living things use energy to carry the out the chemicals activities of life. Some of these activities are turning energy into food, breaking down food, moving things in and out of cells, growing, and building cells. The sum of all of these is called metabolism.
Living Things Grow and Develop
All living things grow during parts of their lives. In single celled organisms, they get larger and divide, which makes other organisms. As the number of cells increases, the organism may develop and change. As you grow older, you will continue to develop through different stages until you become an adult. Even as an adult, you will continue to change.
Changing environments are everywhere. Changes that affect an organism are called stimuli. Stimuli can be chemicals, gravity, light, sounds, hunger, or anything that makes organisms to act in a certain way. But even if an organism's outside environment changes, its inside must stay the same. This is known as homeostasis.