Basic Needs of Organisms

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Percentage of water in the human body.

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About 70% to 85%.

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Reason cells need water.

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To keep their inside environments stable.

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Organisms often live in the same area.

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Many organisms share the same area and resources, such as food and water.

Front

Food provides energy and nutrients.

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All organisms need food to live and grow, but they obtain it in different ways.

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Frogs are consumers.

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Frogs eat insects, making them consumers in the ecosystem.

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Producers use the sun's energy.

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Producers like plants use sunlight to create food through photosynthesis.

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Elements in living things

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Carbon, nitrogen, oxygen, phosphorus, and sulfur.

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Roles of proteins in an organism's body

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Proteins are used to build or fix parts of an organism's body and protect cells.

Front

Hemoglobin

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A protein found in red blood cells that picks up oxygen and delivers it through the body.

Front

Role of proteins in cell processes

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Proteins are used in many processes inside a cell.