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Ecosystem Organization Science Quiz
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Ecosystem Organization Science Quiz
Two students are studying a fruit orchard. Use the information in each question and your science knowledge to answer. Select one answer for most multiple-choice questions; for questions that say “select all that apply” or “circle every,” you may choose more than one. Write complete thoughts for short answers. In food chains and food webs, arrows point from the food or energy source to the organism that receives the energy.
Levels of organization
Think from one living thing to all the interacting parts of its environment.
1.Which sequence correctly orders ecological organization from smallest to largest?
- Community → organism → ecosystem → population
- Organism → population → community → ecosystem
- Population → ecosystem → organism → community
- Ecosystem → community → population → organism
2.There are 18 apple trees in one orchard. What do these apple trees represent as a group?
- An organism
- A population
- A community
- An ecosystem
3.The orchard's apple trees, caterpillars, birds, and fungi are all living there together. What level of organization do they form?
4.True or false: The orchard ecosystem includes living organisms as well as nonliving things such as soil, water, and sunlight.
TrueFalse
Energy and resources
Use the food chains provided in the questions and consider what organisms need to survive.
5.Apple trees and grass make their own food using sunlight. Which of these orchard organisms are producers?
- Apple tree and grass
- Caterpillar and rabbit
- Songbird and snake
- Fungi and bacteria
6.Read this chain: apple tree → caterpillar → songbird. Which organism is the primary consumer?
7.In a food chain, what does an arrow from a mouse to a snake mean?
- The snake gives energy to the mouse.
- The mouse is food for the snake, transferring energy to it.
- The mouse and snake are the same population.
- The snake makes its own food from sunlight.
8.Circle every nonliving (abiotic) factor that could affect the orchard.
- Sunlight
- Soil
- Water
- Apple trees
- Songbirds
9.Fungi and bacteria break down dead leaves and organisms. Explain one way this helps the orchard ecosystem.
10.Complete the statement: Energy in this orchard food web flows from the to producers and then to .
11.A student notices that several weeks without rain have left the grass dry. Predict one way this change could affect animals in the food web, and explain why.
12.If all the producers disappeared from the orchard, what would most likely happen to consumers over time? Explain your answer using energy flow.
Before you finish, check that your explanations name the organisms or nonliving factors involved and connect them to the ecosystem.
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