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Energy Movement through Food Chains, Webs, and Pyramids

Energy Movement through Food Chains, Webs, and Pyramids

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Author: Janet Lee
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Tutorial

Readings:

Owl: Chapter 21-1 pg. 397 - 402 (Organism Relationships) and Chapter 22-1 pg 415 - 419 (Energy Transfer)

Tiger:Chapter 17-2 pg. 365 - 369 

Focus Questions

Food Chain, Food Web, Food Pyramid Focus Questions

What are the different roles that organisms can play in an environment?
What is the difference between an autotroph and a heterotroph.
What does a producer do? What does a consumer do? Name examples of producers and consumers.
What happens if producers are removed from the environment?
What is the difference between a food web and a food chain?
What is the 10% Rule?
Why can there only be about 4 trophic levels?
What is the difference between biomass and energy?
How does the 10% rule support becoming a vegetarian?

Power 10 Vocab words: producer, consumer, food chain, food web, food pyramid, 10% rule, herbivore, omnivore, carnivore, trophic level

 

Competition: Cheetah and wildebeast

Body Invaders. Parasites.

Source: Body Invaders. Accessed via Youtube

Clownfish and sea anenome

Example of commensalism - neither is harmed nor true benefits. Both existing.

Source: youtube video accessed Fall 2012