Exploring the Marine Biome

What percentage of Earth's surface is covered by the marine biome?

• 50%

• 60%

• 70%

• 80%

What is the main difference between marine and freshwater biomes?

• Marine biomes include oceans, seas, and estuaries.

• Marine biomes are found only in oceans.

• Freshwater biomes have saltwater.

• Freshwater biomes are only found in polar regions.

How does the temperature vary in the marine biome?

• It is the same at all depths.

• It is always cold.

• It varies with location and depth.

• It is always warm.

What role do phytoplankton play in the marine ecosystem?

• They are parasites.

• They provide food and oxygen.

• They are predators.

• They are decomposers.

Which marine plant is known for forming underwater forests?

• Algae

• Coral

• Kelp

• Seaweed

What adaptation helps whales navigate in the ocean?

• Camouflage

• Echolocation

• Speed

• Bioluminescence

Which marine animal uses a bioluminescent lure to attract prey?

• Sea Turtle

• Anglerfish

• Shark

• Dolphin

What is a major threat to marine life caused by humans?

• Overfishing

• Pollution, especially plastic

• Natural predators

• Climate change

What percentage of Earth's oceans have humans explored?

• 5%

• 10%

• 15%

• 20%

Why is it important to preserve the marine biome?

• It is a source of fresh water.

• It provides food and oxygen.

• It is uninhabited by humans.

• It is a tourist attraction.