Ecology Quiz Review

What term describes a non-living physical or chemical factor in an ecosystem?

• Biotic factor

• Abiotic factor

• Heterotroph

• Producer

Tags

NGSS.MS-LS2-4

Which of the following is an example of an abiotic factor in an ecosystem?

• Bacteria

• Fungi

• Sunlight

• Grass

Tags

NGSS.MS-LS2-3

What is the term for an organism that cannot make its own food and must consume other organisms for energy?

• Autotroph

• Producer

• Heterotroph

• Decomposer

Which level of biological organization is directly above an individual organism?

• Biosphere

• Ecosystem

• Population

• Community

What type of heterotroph breaks down dead organic matter and returns nutrients to the ecosystem?

• Herbivore

• Carnivore

• Decomposer

• Omnivore

Tags

NGSS.MS-LS2-3

In an ecological pyramid, which level contains the greatest amount of energy?

• Tertiary consumers

• Secondary consumers

• Primary consumers

• Producers

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-4

What is biomagnification?

• The process by which plants absorb sunlight

• The increase in concentration of a toxin as it moves up the food chain

• The decrease in population size due to predation

• The breakdown of organic matter by decomposers

Tags

NGSS.HS-LS4-5

Which of the following correctly lists the levels of biological organization from smallest to largest?

• Individual → Population → Community → Ecosystem → Biosphere

• Population → Individual → Community → Biosphere → Ecosystem

• Individual → Community → Population → Ecosystem → Biosphere

• Biosphere → Ecosystem → Community → Population → Individual

In a food web, if the population of primary consumers suddenly decreases, what is the most likely effect on the producers?

• Producers will also decrease in number

• Producers will increase in number

• Producers will remain unaffected

• Producers will become carnivores

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

A student observes that a lake ecosystem has fish, algae, insects, frogs, and herons. Which of the following correctly identifies the biotic and abiotic components?

• Fish and water are biotic; algae and sunlight are abiotic

• Algae, fish, insects, frogs, and herons are biotic; water, sunlight, and temperature are abiotic

• All living and non-living things are biotic

• Water and sunlight are biotic; fish and frogs are abiotic