Ecosystems and the environment quiz
Ecosystems and the Environment Quiz
Check ecosystem components, energy flow, matter cycles, populations, limiting factors, food chains, biodiversity, and resilience.
Related to General Science and Ecosystems and the environment.
- Difficulty
- beginner
- Questions
- 5
- Estimated time
- About 5–8 min
Lesson connection
Prepare for this practice
Examine how living communities interact with abiotic environments, trace the linear flow of energy versus the cyclic movement of matter, and explore ecological balance.
Review Ecosystems and the environment before starting →Ideas to recall
- Ecosystems represent dynamic functional networks integrating biological communities with physical abiotic factors.
- Usable energy flows unidirectionally through food webs and dissipates as metabolic heat; chemical matter cycles indefinitely.
- Roughly 90% of biological energy is lost at each successive trophic step, limiting the length of food chains.
- Keystone species exert disproportionate regulatory influence on community structure relative to their abundance.
Use these ideas to reason through each question; answer-specific explanations appear only after you check a response.
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Assessment Coverage & Question Outline
This assessment contains 5 multiple-choice challenge questions designed to evaluate core conceptual understanding and practical application of Ecosystems and the environment. Review the questions below to test your recall or use the interactive assessment above for real-time validation and detailed step-by-step explanations.
What does an ecosystem include?
- A.Organisms and the physical environment with which they interact
- B.Only the largest animals in an area
- C.Only nonliving rocks and water
How do energy and matter behave differently in ecosystems?
- A.Both are destroyed after one food-chain step
- B.Energy flows through, while matter is recycled in cycles
- C.Energy cycles perfectly but matter never moves
What is a limiting factor for a population?
- A.A feature that guarantees unlimited growth
- B.The scientific name of the species
- C.A resource or condition that restricts growth
What does an arrow in a food chain usually show?
- A.The direction of energy transfer from food to consumer
- B.Which organism is physically larger
- C.The direction every animal travels
Why can biodiversity support resilience without guaranteeing it?
- A.More species make disturbance impossible
- B.Varied roles and responses can help recovery, but severe disturbance can still overwhelm the system
- C.Biodiversity removes all competition
Want to check your answers? Use the interactive practice tool at the top of the page to submit your choices and view in-depth explanations for every option.
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