In ecology, what are 'biotic factors'?

Biotic factors (also known as 'living factors') refer to processes by which one living organism affects other living organism in its environment.

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In ecology, what are 'abiotic factors'?

Abiotic factors (also known as 'non-living factors') refer to features of the environment that affect living organism in that environment.

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Give 8 abiotic (non-living) factors that can affect a community.

  1. Light intensity.
  2. Temperature.
  3. Moisture levels.
  4. Soil pH.
  5. Soil mineral content.
  6. Wind intensity and direction.
  7. Carbon dioxide levels for plants.
  8. Oxygen levels for aquatic animals.

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Give 4 biotic (living) factors that can affect a community.

  1. Availability of food.
  2. New predators arriving.
  3. New pathogens.
  4. One species out-competing another.

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