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Science

Cells to systems

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Cells, tissues, organs and systems

Tissues

Animal cells and plant cells can form tissues, like muscle tissue. A living tissue is made from a group of cells with a similar structure and function, which all work together to do a particular job. Here are some examples of tissues:

  • muscle

  • the lining of the intestine

  • the lining of the lungs

  • phloem (tubes that carry dissolved sugar around a plant)

  • root hair tissue (for plants to take up water and minerals from the soil)

Organs

An organ is made from a group of different tissues, which all work together to do a particular job. Here are some examples of organs:

  • heart

  • lung

  • stomach

  • brain

  • leaf

  • root

Organ systems

An organ system is made from a group of different organs, which all work together to do a particular job. Here are some examples of organ systems:

  • circulatory system

  • respiratory system

  • digestive system

  • nervous system

  • reproductive system

  • leaf canopy

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