a community of cells how cells make up a body.. cell organization cells are organized into systems...
DESCRIPTION
Cells A cell is the basic building block on which the body is built on. The body is simply a collection of cells that do different jobs that live together in community.TRANSCRIPT
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A Community of Cells
How cells make up a body.
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Cell Organization
Cells are organized into systems that, together, perform functions that keep the organs healthy and alive.
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Cells
• A cell is the basic building block on which the body is built on. The body is simply a collection of cells that do different jobs that live together in community.
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Tissues
Tissues: groups of similar cells that do the same sort of work
Ex: Skin cells make up skin tissue
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Organs and Organ Systems
Organs: different types of tissues working together
Organ systems: a group of organs working together to do a certain job.
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Bone Cells are surrounded by a hard substance made of calcium and phosphorus
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Nerve cells are long and have many branches. This allows them to receive and deliver messages quickly.
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Muscle cells are usually long and have many fibers that can contract and relax.
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Skin cells are mostly flat and close together. They form a protective layer for your body.
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Read Section 15.3
• Answer questions 1-5