Levels of organization

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Levels of organization
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• Atoms smallest unit of all matter
• Molecules a few atoms put together with
  covalent bonds
• Macromolecules very large molecules made up of
  hundreds or thousands of atoms
• http//biomodel.uah.es/en/model3/index.htm

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• Cells the smallest units of life that are made
  up of cell organelles. Cells specialize to
  perform all life functions.

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• TISSUES groups of cells of similar structure
  that perform a particular, related function.

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• ORGANS Structures of definite form and
  structure, comprising two or more tissues.

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• ORGAN SYSTEMS an association of organs with a
  common function.
• There are several organ systems in the human
  (many animal) body (know 3 examples)
• Circulatory Integumentary
• Excretory Sensory
• Respiratory Reproductive
• Digestive Muscular
• Immune Skeletal
• Nervous
• Endocrine

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• ORGANISM The complex functioning of all the
  components above builds up the organism.

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The following levels include groups of organisms

• POPULATION a group of organisms that belong to
  the same species (ex. All white tailed deer in a
  forest)
• COMMUNITY all living organisms that live in the
  same area and interact with each other. (all
  living organisms of the same forest)

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• ECOSYSTEMS all living organisms and their
  nonliving environment in a given area.
• http//www.youtube.com/watch?vTxfAVuarVTIfeature
  related
• BIOSPHERE all life forms and the environment
  that they live in on the planet.