Ecosystem and Symbiotic Relationships Quiz

What is the primary source of all energy in an ecosystem?

• Plants

• Producers

• Fungus and bacteria

• The sun

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Which statement correctly describes the relationship between deer and green plants?

• The deer supplies food and oxygen to the green plants

• The deer supplies food and carbon dioxide to the green plants

• The green plants supply food and carbon dioxide to the deer

• The green plants supply food and oxygen to the deer

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NGSS.MS-LS1-6

In a symbiotic relationship where a fish attaches to a manta ray for a free ride without affecting the ray, this is called:

• Predation

• Competition

• Mutualism

• Commensalism

Which organisms in an ecosystem are considered consumers?

• Plants and algae

• Herbivores, carnivores, and omnivores

• Bacteria and fungi

• All producers

What is the most accurate definition of a food chain?

• A diagram showing all feeding relationships in an ecosystem

• A linear sequence showing how energy flows from one organism to another

• A chart showing population changes over time

• A pyramid showing biomass at different trophic levels

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NGSS.MS-LS2-3

In a predator-prey relationship between lions and hyenas competing for a gazelle, this represents:

• Mutualism

• Competition

• Parasitism

• Commensalism

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Which of these represents only abiotic factors in an ecosystem?

• Trees, soil, and water

• Temperature, water, and soil

• Bacteria, sunlight, and rocks

• Plants, air, and temperature

When a flea feeds on a mouse's blood and harms the mouse, this relationship is called:

• Competition

• Predation

• Parasitism

• Mutualism

What is the correct order of ecological organization from smallest to largest?

• Organism, ecosystem, community, population, biosphere

• Organism, population, community, ecosystem, biosphere

• Population, organism, community, ecosystem, biosphere

• Organism, community, population, ecosystem, biosphere

Which organisms would be considered decomposers in an ecosystem?

• Termites and rabbits

• Fungi and bacteria

• Foxes and wolves

• Plants and algae

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NGSS.MS-LS2-2

NGSS.MS-LS2-3