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Science
| Term | Definition |
|---|---|
| Cell | the basic building blocks of life |
| Nucleus | the control center of the cell that contains the DNA |
| Cell Membrane | a layer on the outside of the cell that holds the cell together |
| Cytoplasm | the jellylike substance that fills the cell membrane |
| Unicellular Organism | an organism that can survive as a single cell |
| Tissue | a group of cells that works together on a similar job |
| Organ | a group of tissues that work together to accomplish a particular function |
| Organ System | a group of organs that work together to perform an important function of the body |
| Active Transport | requires energy to move a substance into or out of a cell |
| Passive Transport | is a type of membrane transport that does not require energy to move substances across cell membranes. |
| Multicellular Organism | plants and animals that have different cells to carry out different functions |
| Transport | to move people or goods from one place to another |
| Microscopes | a science tool that uses lenses to make tiny things look larger so they can be observed |
| Circulatory System | the group of organs that work together to move blood throughout the body |
| Cardiovascular System | another term for the circulatory system |
| Heart | the organ in the circulatory system that pumps blood throughout the body |
| Blood | a tissue made of blood cells floating in a liquid: carries materials throughout an animal’s body. |
| Vessels | a part of the circulatory system and function to transport blood throughout the body |
| Respiratory System | the group of organs that work together to take oxygen and release waste gasses |
| Nose | is the body's primary organ of smell and also functions as part of the body's respiratory system |
| Trachea | the tube in the respiratory system that connects the mouth and nose with the bronchi |
| Lungs | the two organs in the respiratory system that take oxygen from the air and release waste gasses into the air. |
| Skeletal System | the group of bones, cartilage, and other tissues and organs that work together to hold the body up, give it shape, protect inner organs, make blood cells and produce movement when muscles pull on bones |
| Bones | is an organ that forms the skeleton |
| Muscular System | the group of organs that cause movement of body parts. |
| Muscles | an organ in the muscular system that contracts and relaxes to produce movement |
| Digestive System | the group of organs that work together to break food down into nutrients that the body can use. |
| Mouth | where digestion begins |
| Esophagus | the tube in the digestive system that connects the mouth to the stomach |
| Stomach | the organ in the digestive system that churns food and mixes it with digestive juices |
| Large Intestine | the organ in the digestive system that removes water from undigested wastes before they leave the body |
| Small Intestine | the organ in the digestive system that finishes breaking down food with digestive juices and absorbs nutrients |
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