EL G6 WWF Mid Unit Assessment - Ocean Ecosystem Quiz

How are zooplankton, one of the smallest forms of sea life, essential to a healthy ocean ecosystem?

• Zooplankton eat masses of phytoplankton.

• Zooplankton are food for several ocean species such as the herring and the humpback whale.

• Zooplankton become larva that turn into coral.

• Zooplankton do all of the above.

What are phytoplankton?

• Creatures of the sea that eat zooplankton

• Microscopic plants that are the beginning of the ocean food chain

• Land-based plants that pollute the oceans

• Large sea animals that eat fish

How do fishermen take part in the “destruction of life” in the ocean?

• By planting coral reefs

• By overfishing and damaging habitats

• By cleaning the ocean

• By creating marine reserves

More recently, how are fishermen exploring life at sea?

• By using traditional fishing methods

• By studying marine biology

• By using advanced technology and sustainable practices

• By avoiding the ocean

How is the orange roughy different from other commercial fish such as haddock or cod?

• It is smaller in size

• It has a longer lifespan and matures slowly

• It is found only in freshwater

• It is more colorful

What is a “cautionary tale”?

• A story with a happy ending

• A story that warns about dangers

• A story about animals

• A story with no moral

How is the story of the orange roughy a cautionary tale?

• It shows the benefits of fishing

• It warns about the consequences of overfishing

• It describes the beauty of the ocean

• It tells a fictional story

How much of the Earth's oxygen is produced by plankton in the ocean?

• 25%%

• 33%

• 50%

• 75%

Animal members of the plankton community.

• Phytoplankton
• Meroplankton
• Holoplankton
• Zooplankton

The number of organisms increase as the ocean depth decreases.

• True

• False