Chapter 5
Interaction in Ecosystems
Lessons
What is an ecosystem?
What are land biomes?
What are water ecosystems?
How do organisms interact?
How does energy move in ecosystems?
What cycles occur in ecosystems?
Lesson 4, How do organisms interact?
Why do organisms compete?
What happens to the organisms that cannot compete?
What is a common thing that animals compete for?
How does the kudzu vine compete?
What can occur in a symbiotic relationship?
What is an example of “living together” in a symbiotic relationship?
What is an example of “necessity” in a symbiotic relationship?
What is an example of “helping” in a symbiotic relationship?
What is an example of “harm” in a symbiotic relationship?
Lesson 5, How does energy move in ecosystems?
How does energy move through ecosystems?
What are examples of producers?
What are examples of consumers?
What is the energy source of a food chain and web?
How is a food web different from a food chain?
What does an energy pyramid illustrate?
Which level has the greatest amount of energy?
What amount of energy flows upward in an energy pyramid?
What is at the end of each food chain and web?
What type of energy moves in a food chain and web?
Lesson 6, What cycles occur in ecosystems?
What is the role of decomposers?
What are some examples of decomposers?
What is evidence that something is decomposing?
What happens to decomposed material?
What is a cycle?
What occurs during the nitrogen cycle?
Why is nitrogen an important gas?
Why is carbon dioxide an important gas?
Why is oxygen an important gas?
What is combustion?
