ACA Grade 8 Science
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Ecology
Dictionary Definition -
the study of the relationships between living organisms and their environment

Models can help Explain Feeding Relationships

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Models help explain feeding relationships
Energy & Matter Movement
  • Food chains and food webs are models that show how energy and matter move through the organisms of an ecosystem.

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Food Chain
  • A food chain shows one path of energy movement through an ecosystem...

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Producer
  • From a producer like grass...

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Primary Consumer
  • To a herbivore or primary consumer like a grasshopper...

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Secondary Consumer
  • To a secondary consumer like a robin or another small bird...


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Tertiary Consumer
To a tertiary consumer like a hawk or eagle..

Food Web
  • A food web shows many paths of energy movement through an ecosystem.
  • It indicates that each organism eats and is eaten by several organisms.
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