Identifying cells, tissues, organs, and organ systems,

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Identifying cells, tissues, organs, and organ
systems,
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Cells

• A structural unit of all living things. The
  smallest unit classified as an living organism.

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Tissues

• Tissues are an ensemble of cells, they are not
  the same but the are of the same origin, that
  carries out an function.
• A bunch of cells that work together

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Organs

• Organs are groups of tissue that perform
  different functions. There are many organs in the
  body like skin, kidney, liver, and etc.

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Organ Systems

• Some types of organ systems are, Circulatory,
  Respiratory, Digestive, Nervous, and Reproductive.

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Digestive System

• breaks down proteins, fats and all carbohydrates
  into smaller molecules, which can then be
  absorbed along with vitamins and minerals

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Respiratory

• Absorbs oxygen from the air and excretes the
  waste product carbon dioxide to the air.

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Circulatory system

• distributes nutrients and oxygen to all body
  cells plus hormones to target cells, carries
  waste products to the organs of excretion
  (kidneys, lungs), toxins to the liver for
  detoxification and also helps fight infections
  through its white blood cells

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Skeletal system

• It supports the body and protects it. It is also
  what all the are muscles attached to, without
  that you couldn't use them.

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Muscular system

• The main purpose of the muscular system is to
  provide movement for the body. The muscular
  system consists of mucles

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Urinary System

• Remove wastes from the body.
• Regulate levels of electrolytes in the body.
• Regulate hydration of the body.
• Maintain acid-base balance of the body.
• Maintain blood pressure.

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Nervous System

• To provide communication in the body, sensations,
  thoughts, emotions, memories and controls your
  reactions.

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How do the organ systems work together?

• distributes the above nutrients and oxygen to all
  body cells plus hormones to target cells, carries
  waste products to the organs of excretion
  (kidneys, lungs), toxins to the liver for
  detoxification and also helps fight infections
  through its white blood cells