Phytoplankton and Their Impact on the Planet

What is the primary role of phytoplankton in the ocean?

• Regulating ocean temperature

• Creating coral reefs

• Producing oxygen

• Hunting for food

What is the main process by which phytoplankton produce food?

• Excretion

• Respiration

• Photosynthesis

• Digestion

Which of the following is NOT a type of phytoplankton mentioned in the text?

• Armored diatoms

• Coccolithophores

• Whip-tailed dinoflagellates

• Jellyfish

What is the purpose of the shells of coccolithophores?

• To store excess carbon dioxide

• To create a chemical buffer in the ocean

• To produce light for navigation

• To provide protection from predators

What is the estimated amount of carbon dioxide consumed by phytoplankton each year?

• 5 gigatons

• 11 gigatons

• 15 gigatons

• 20 gigatons

What event in Earth's history is credited with the evolution of cyanobacteria and the production of oxygen?

• The Great Oxidation Event

• The Ice Age

• The Cambrian Explosion

• The Great Extinction Event

What is the function of the calcium carbonate shells of phytoplankton in the ocean?

• To provide buoyancy

• To create a chemical buffer

• To attract mates

• To protect against predators

What is the primary mission of the Monterey Bay Aquarium?

• To promote fishing practices

• To study deep-sea creatures

• To develop new aquarium technology

• To inspire conservation of the ocean

What is the significance of phytoplankton in the evolution of complex life on Earth?

• They helped jump-start the evolution of complex life

• They created the first land plants

• They caused mass extinctions

• They provided food for early humans

What is the impact of phytoplankton on the atmosphere?

• They produce greenhouse gases

• They deplete the ozone layer

• They help form clouds and cool the planet

• They cause acid rain