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Living Organisms
5th Grade Science Vocabulary
| Term | Definition |
|---|---|
| traits | quality or characteristic of a living thing (eye color, height) |
| acquired traits | a trait that a living thing gets during its lifetime (scar) |
| instinct | an inherited behavioral trait such as walking for people and hibernating for bears (fish know how to swim by instinct) |
| heredity | the process by which traits are transferred from parent to offspring |
| DNA | the material that carries all the information about how a living thing will look and function |
| inherited traits | a characteristic that a living thing gets from its parents (blue eyed children inherit eye color) |
| offspring | the young of a person, animal, or plant (a cow's offspring is a calf) |
| cell | the basic unit of life |
| unicellular | a living organism composed on one cell (amoeba, paramecium) |
| multi-cellular | a living organism composed of many specialized cells (hydra, insect, human, animal) |
| tissue | a group of similar cells that work together (muscle cells, skin cells) |
| organ | part of a system that consists of cells and tissue that is specialized to perform a specific task (heart, brain, lungs) |
| nervous system | the body system that sends and receives messages through the body (brain, spinal cord, nerves) |
| circulatory system | the body system that moves oxygen, food, and waste throughout the body (also called the cardiovascular system) |
| respiratory system | the body system that brings oxygen in and takes carbon dioxide out (lungs) |
| digestive system | the body system that breaks down food to be used as energy |
| skeletal system | the body system that provides support and structure through the bones (bones) |
| muscular system | the body system that works with the bones to allow movement |
| involuntary muscle | muscles that work automatically (cardiac muscle, stomach muscle) |
| voluntary muscle | muscle that allows YOU to control movement (skeletal muscle) |
Created by:
afitz23
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