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The Organization of Life

The Organization of Life. How do we organize living things?. Branches of biology. Because biology is so vast, it is divided into many smaller sub-fields of study. Many of these areas of study focus on certain divisions of the natural world. . Molecules. These are clusters or groups of atoms.

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The Organization of Life

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  1. The Organization of Life How do we organize living things?

  2. Branches of biology • Because biology is so vast, it is divided into many smaller sub-fields of study. • Many of these areas of study focus on certain divisions of the natural world.

  3. Molecules • These are clusters or groups of atoms. • Smallest unit of any compound.

  4. Cells • These are the smallest units of life. • Contain several different molecules.

  5. Groups of cells • These are structures that are made up of cells. • We will cover this in later units.

  6. Organisms • One individual living thing. • May be unicellular or multicellular. • Includes you and me!

  7. Population • A group of ONE specific organism. • For instance, a flock of geese is a population.

  8. Community • ALL of the populations within a given area. • All populations within a community interact with one another.

  9. Ecosystem • A single community, combined with all of the non-living factors in the area. • Includes rocks, water, air. • Non-living factors are abiotic. (“not living”) • Living factors, such as a population, are biotic (“living”.

  10. Biosphere • All of the ecosystems on Earth. • Biosphere means “living sphere”.

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