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Producers--Autotrophs

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3210.2.1—Predict how population changes of organisms at different trophic levels affect an ecosystem. Producers--Autotrophs. Use energy from the environment to make food Main source of energy is sunlight (photosynthesis)

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3210.2.1—Predict how population changes of organisms at different trophic levels affect an ecosystem.

producers autotrophs
Producers--Autotrophs
  • Use energy from the environment to make food
  • Main source of energy is sunlight (photosynthesis)
  • Some organisms rely on energy stored in inorganic compounds (chemosynthesis)
consumers heterotrophs
Consumers—Heterotrophs
  • Rely on other organisms for energy and food supply.
  • Herbivores—eat plants only
  • Carnivores—eat animals only
  • Omnivores—eat plants and animals
  • Detrivores—eat animal and plant remains
  • Decomposers—breaks down organic matter
food chain
Food Chain
  • A series of steps in which organisms transfer energy by eating and being eaten
  • Arrow points to what is eating
  • GrassAntelopeCoyote
food web
Food Web
  • Links all the food chains in an ecosystem together
trophic level
Trophic level
  • Each step in a food chain or food web
  • 1st level is always producers
  • Consumers make up the 2nd, 3rd or higher

Tertiary consumer

Secondary consumer

Primary consumer

Primary producer

bozeman video
Bozeman Video
  • Biotic and abiotic factors
assignment
Assignment
  • Create a food web for a particular biome (will be assigned from pgs. 100-104)
  • Most contain at least 5 food chains consisting of a producer, primary consumer and secondary consumer. Each consumer must be labeled as an herbivore, carnivore, omnivore or decomposer
  • At least one predator-prey relationship must be shown
  • At least 2 abiotic factors must be included and labeled
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