Deep Blue World Review

What are examples of biotic factors in the ocean?

• Coral

• Nonliving things

• Salt

• Living things

In which zone will you find the most producers who perform photosynthesis?

• Midnight zone

• Sunlight zone

• Hadal Zone

Which work activity is done by a marine biologist?

• Making laws about the coean

• Studying marine organisms and their ecosystems.
• Designing video games about underwater life

How do decomposers nourish themselves?

• Decomposers create their own food through photosynthesis.
• Decomposers feed on living plants and animals.
• Decomposers nourish themselves by breaking down detritus and absorbing the nutrients.

• Decomposers rely on sunlight for energy.

How do producers nourish themsleves?

• Producers nourish themselves through photosynthesis or chemosynthesis.

• Producers consume organic matter directly.
• Producers rely on detritus for nutrition.

• Producers rely on other organisms for food.

What adaptation do some deep predators use to attract their prey?

• Camouflage
• Speed
• Sharp teeth
• Bioluminescence

Mangrove forests and estuaries are located near

• mountain regions
• deserts
• coastal areas
• inland lakes

How is a gyre formed in the ocean?

• A gyre is formed by the melting of polar ice caps.
• A gyre is formed by permenant currents.

• A gyre is created by the gravitational pull of the moon.
• A gyre is formed by underwater volcanoes.

Why is plastic harmful to the ocean?

• Plastic is biodegradable and helps marine life thrive.
• Plastic is harmful to the ocean because it pollutes the water, harms marine life, and disrupts ecosystems.
• Plastic is a natural substance that enriches ocean ecosystems.
• Plastic is used to create habitats for marine animals.

How are kelp and coral different?

• Kelp is a type of fish; coral is a plant.
• Kelp grows in freshwater; coral thrives in deserts.
• Kelp is a single-celled organism; coral is a multi-celled plant.
• Kelp is a plant-like algae; coral is an animal that forms reefs.