Energy Flow in Ecosystems
Explore the concepts of energy flow, food chains, food webs, and trophic levels within ecosystems.
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Energy Flow in Ecosystems
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following organisms is a producer in most ecosystems?
Lion
Fungus
Oak Tree
Human
2. What percentage of energy is typically transferred from one trophic level to the next?
1%
10%
50%
90%
3. Organisms that produce their own food are called .
4. A network of feeding interactions in an ecosystem is known as a .
5. Decomposers play a crucial role in recycling nutrients back into the ecosystem.
True
False
6. Herbivores are organisms that feed on other animals.
True
False
7. Explain the difference between a food chain and a food web.
8. Analyze the food web below and answer the questions that follow.
a) Identify one producer from the food web.
b) Identify one primary consumer from the food web.
c) Identify one secondary consumer from the food web.
d) If the population of snakes suddenly decreased, what immediate effect would this have on the populations of mice and hawks?