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Marine Life

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What is the purpose of bioluminescence in deep-sea organisms?

To see in the dark

To scare away predators

To camouflage with the environment

To communicate and attract prey

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What is the depth range of the bathypelagic zone?

0–200 m

200–1000 m

1000–4000 m

4000–6000 m

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Which fish is the most common deep-sea fish?

Lanternfish

Flashlight fish

Cookiecutter shark

Bristlemouths

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What is the purpose of the liver in sharks?

To help them see in the dark

To help them breathe

To provide buoyancy

To digest their food

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What is the purpose of the dermal denticles in sharks?

To help them breathe

To help them see in the dark

To protect their skin

To help them swim faster

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What is the largest fish in the world?

Dwarf lanternshark

Great white shark

Whale shark

Tiger shark

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