How Phytoplankton Make the World Go Round

The video explores the microscopic world of sand and pond water, focusing on phytoplankton. It explains their role in photosynthesis and oxygen production, highlighting their historical impact on Earth's atmosphere. The video also discusses phytoplankton's crucial position in aquatic food chains, serving as a primary food source for small aquatic animals, which in turn support larger species.

What are phytoplankton primarily known for?

• Causing diseases in humans

• Living on land

• Producing oxygen through photosynthesis

• Being large sea creatures

How do phytoplankton contribute to the oxygen we breathe?

• By living in forests

• By being part of the food chain

• By producing oxygen through photosynthesis

• By consuming oxygen

What percentage of the world's oxygen is produced by phytoplankton?

• Less than 10%

• About 25%

• More than 50%

• Exactly 100%

Why are phytoplankton crucial for aquatic food chains?

• They are the largest animals in the ocean

• They consume all the oxygen in the water

• They provide food for small aquatic animals

• They live on land

What would happen to aquatic ecosystems without phytoplankton?

• They would have more land plants

• They would become more populated

• They would thrive with more oxygen

• They would lack a primary food source