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CGHS Biology - Food Webs and Chains

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by

Sean Holder

on 3 September 2014

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Transcript of CGHS Biology - Food Webs and Chains

How energy moves
Trophic Levels
Trophic Levels:
The hierarchy of feeding
(who eats who?>
Two Types of Interactions
Food Webs
Killer Whales
Sharks
Food Chains
Vocabulary
Big Takeaways
Food Webs reflect the
niche of an organism
This is called a trophic interaction
(when there is a transfer of energy)
- eating, decomposer, obtaining energy via photosynthesis
Food Chains
very complex interaction with multiple pathways
Single pathway with simple interactions
Harbor Seals
Yellow Fin Tuna
Mackerel
Cod
Halibut
Zooplankton
Unicellular Algae and Diatoms
#5 - Killer Whale
#4 - Harbor Seals
#3 - Mackerel
#2 - Zooplankton
#1 - Phytoplankton
Carnivore
Carnivore
Carnivore
Herbivores
Producers
Autotrophs
Primary Consumer
Secondary Consumer
Tertiary Consumer
Apex Predator
Single Path (start form the bottom)
Energy
Energy Levels
Full transcript