Exploring Aquatic Ecosystems Quiz

What is the primary source of energy for most aquatic ecosystems?

• Wind

• Sunlight

• Tides

• Geothermal heat

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following is a characteristic feature of a freshwater ecosystem?

• High salinity

• Low salinity

• Presence of coral reefs

• High temperature

What is the term for the process by which plants in aquatic ecosystems produce oxygen?

• Respiration

• Photosynthesis

• Decomposition

• Fermentation

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NGSS.MS-LS1-6

Which of the following organisms is considered a primary producer in aquatic ecosystems?

• Fish

• Algae

• Crabs

• Sharks

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NGSS.MS-LS2-3

What is the role of decomposers in an aquatic ecosystem?

• Produce oxygen

• Break down dead organic matter

• Consume primary producers

• Filter water

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NGSS.MS-LS2-3

Which of the following is an example of a marine ecosystem?

• Lake

• River

• Ocean

• Pond

What is the term for the area where freshwater from a river meets the saltwater of the ocean?

• Estuary

• Lagoon

• Bay

• Delta

Which of the following factors can affect the distribution of organisms in an aquatic ecosystem?

• Light availability

• Temperature

• Salinity

• All of the above

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NGSS.MS-LS2-4

Which of the following is a common adaptation of fish in deep-sea environments?

• Bright coloration

• Bioluminescence

• Large eyes

• Thick scales

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NGSS.MS-LS4-4

Which of the following is a major threat to coral reefs?

• Overfishing

• Deforestation

• Acid rain

• Coral bleaching

Tags

NGSS.MS-LS2-4

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