About this Study Set
This study set covers Ecology through
15 practice questions.
A set of questions testing core knowledge of ecological principles, concepts, and well-known examples. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 15 questions from the
Fundamentals of Ecology study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is the primary energy source for almost all ecosystems on Earth?
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A
Geothermal energy
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B
The Moon's gravitational pull
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C
Photosynthesis from the Sun
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D
Chemical energy from deep-sea vents
2
Which ecological term describes all the living organisms in a particular area, interacting with each other?
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A
Habitat
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B
Niche
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C
Ecosystem
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D
Community
3
In a food chain, organisms that produce their own food, usually through photosynthesis, are called:
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A
Consumers
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B
Decomposers
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C
Carnivores
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D
Producers
4
What is the term for the specific role an organism plays within its ecosystem, including its diet, habitat, and interactions?
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A
Biome
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B
Ecological niche
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C
Population
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D
Community
5
Which biogeochemical cycle involves the movement of carbon atoms through the atmosphere, oceans, land, and living organisms?
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A
Nitrogen cycle
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B
Water cycle
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C
Phosphorus cycle
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D
Carbon cycle
6
A relationship where both species benefit is known as:
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A
Parasitism
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B
Commensalism
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C
Mutualism
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D
Predation
7
Which ecological factor refers to the non-living physical and chemical elements of an environment, such as temperature, sunlight, and water?
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A
Biotic factors
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B
Abiotic factors
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C
Population density
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D
Biodiversity
8
What is the process by which organisms better adapted to their environment tend to survive and produce more offspring?
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A
Genetic drift
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B
Natural selection
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C
Mutation
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D
Speciation
9
The Amazon rainforest is an example of a large-scale ecological area characterized by specific climate and dominant plant and animal life. What is this called?
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A
Ecosystem
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B
Habitat
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C
Biome
-
D
Community
10
What are organisms that break down dead organic matter called?
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A
Producers
-
B
Consumers
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C
Decomposers
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D
Herbivores
11
The total number of individuals of a single species living in a specific area at a particular time is referred to as a:
-
A
Community
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B
Ecosystem
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C
Population
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D
Niche
12
Which of these is a common example of an abiotic factor affecting an aquatic ecosystem?
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A
Fish
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B
Algae
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C
Water temperature
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D
Bacteria
13
What is the term for the variety of life in the world or in a particular habitat or ecosystem?
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A
Evolution
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B
Adaptation
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C
Biodiversity
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D
Symbiosis
14
In a predator-prey relationship, what is the organism that hunts and kills another organism for food called?
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A
Prey
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B
Producer
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C
Scavenger
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D
Predator
15
The process by which water moves from the atmosphere to the Earth's surface as rain, snow, sleet, or hail is known as:
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A
Evaporation
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B
Transpiration
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C
Condensation
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D
Precipitation
