The hidden heroes of the ocean, exploring phytoplankton

The video explores the unseen world of microscopic life in the ocean, focusing on phytoplankton. It highlights their crucial role in producing over half of the Earth's oxygen. The video delves into two types of phytoplankton: cocalithophores, which contribute to oxygen release and form the White Cliffs of Dover, and dinoflagellates, known for causing bioluminescent waters and harmful red tides. The content emphasizes the dual nature of phytoplankton as both life-giving and potentially dangerous.

What is the estimated number of phytoplankton in a teaspoon of seawater?

• 10,000

• 50,000

• 100,000

• 1,000,000

What do cocalithophores release into the atmosphere when they die?

• Carbon dioxide

• Nitrogen

• Oxygen

• Hydrogen

What natural landmark is formed from the skeletons of cocalithophores?

• The Grand Canyon

• Mount Everest

• The White Cliffs of Dover

• The Great Barrier Reef

What phenomenon are dinoflagellates responsible for?

• Aurora Borealis

• Earthquakes

• Bioluminescent waters

• Tornadoes

What color do dinoflagellate blooms turn the water?

• Yellow

• Crimson red

• Green

• Blue