Natural Aquatic Habitats: Estuaries Quiz

Test your new knowledge about estuarine habitats with this self-scored quiz.

Select the answer that is correct.

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* 1. Which of the following is part of the food chain?

Oysters

Mangroves

People

All of the above

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* 2. Which of the following is not a reason seagrasses are important in an estuarine habitat?

They provide habitat for wildlife.

They provide food for consumers.

They provide food for deepwater organisms.

They indicate the health of an aquatic ecosytem.

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* 3. Which aquatic animal is a scavenger?

Mullet

Blue crab

Dolphin

Oyster

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* 4. Oysters are filter feeders. What does this mean?

They are carnivores.

They must swim around to find their food.

They are predators.

They get food from water they draw into their shells.

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* 5. Estuaries are ecosystems found between freshwater and saltwater habitats. What is the main difference between estuarine, freshwater, and saltwater habitats?

Animals found in the region

Amount of sunlight penetrating the water

Amount of salt in the water

How many waves there are

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* 6. An ecosystem is a natural ______ of living things that interact with each other and with nonliving parts of the environment.

community

neighborhood

area

region

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* 7. A(n) _______ is a place where freshwater and salt water meet and mix.

inlet

bay

river

estuary

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* 8. Most people don’t realize that they are part of an ecosystem too. How can humans protect ecosystems?

By picking up litter and disposing of it properly

By helping keep our waterways clean

By protecting wetlands

All of the above

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* 9. Which is the best example of consumers found in an estuary?

Mosquitoes, largemouth bass, egrets, and alligators

Fungi, bacteria, and insects

Mangroves, mollusks, fish and osprey

Oyster, fish, heron, dolphins, and crabs

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* 10. Mullet are called ______ because they eat plants called algae and decaying leaves called detritus.

primary consumers

primary producers

secondary consumers

tertiary producers