Aim: How is a food chain different than a food web?
Aim: How is a food chain different than a food web? Food Web Objectives 1. Learn how a food chain is different from a food web. 2. Learn how to create a food chain and food web. 3. Learn how to analyze the interdependence of one organism to another.
Life in an ecosystem requires a source of energy. Food Chains and Food Webs are similar because they both model the flow of energy in an
ecosystem. However, food chains are simple!! A food chain is a simplified way to look at the energy that passes from producers to
consumers. Because we know each predator does not eat only 1 type of prey. What is a Food Web? A more realistic way of
looking at the relationship of plants and animals in an environment Several food chains linked together A predator from one food chain may be linked to the prey of another food
chain Food Webs are more realistic and more complicated. notice all the different arrows Food Webs are realistic because predators eat more than 1 type of prey.
Lesson Summary Questions 1. What does all life in an ecosystem require? 2. How is a food chain and a food web similar? 3. How is a food chain different than a food web? 4. What is another name for producer? 5. What are consumers also called?
Check for Understanding!!! 7. Create a correct food chain with the following organisms below. Simple Food Chain Check for Understanding!!!
8. Create an appropriate food chain for the pond ecosystem below. Medium Difficult Food Chain Check for Understanding!!! 9. Create an appropriate food chain for the pond ecosystem below. Hawk
Raccoon Frog Water lilies Dragonfly Difficult Food Chain Deer
Check for Understanding!!! 10. Create an appropriate food web with the organisms below. Simple Food Web Check for Understanding!!! 11. Create an appropriate food web for the pond ecosystem below.
Difficult Food Web Lets Check for Understanding Regents Based Questions 1. The diagrams represent four members of a food chain. Which sequence best represents the transfer of energy between these organisms?
A. B. C. D. toads predaceous insects herbivorous insects plants predaceous insects herbivorous insects plants toads plants herbivorous insects predaceous insects toads
plants herbivorous insects toads predaceous insects Lets Check for Understanding Regents Based Questions 2. Which sequence shows a correct pathway for the flow of energy in a food chain? A. B.
C. D. bacteria grass fox owl grass grasshopper frog snake fungi beetle algae mouse algae snake duck deer
Lets Check for Understanding Regents Based Questions 3. A food web is more stable than a food chain because a food web A. transfers all of the producer energy to herbivores B. reduces the number of niches in the ecosystem C. includes alternative pathways for energy flow
D. includes more consumers than producers Lets Check for Understanding Regents Based Questions 4. Which type of model provides the most complete representation of the feeding relationships within a community? A. a material cycle
B. a predator-prey association C. a food chain D. a food web Analyzing Changes to the Food Chain Each situation describes a change in a food chain environment. In
complete sentences describe how the changes will affect the organisms in each food chain. details Support your answers with specific
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