Breathing Mechanisms in Marine Life

The video explores how fish and marine mammals breathe. Fish use gills to extract oxygen from water, while marine mammals like whales and dolphins have lungs and must surface for air. The video highlights the differences between fish and mammal respiratory systems and explains why marine mammals are not fish.

What do humans use to breathe air?

• Scales

• Fins

• Lungs

• Gills

How do fish obtain oxygen underwater?

• Through their skin

• By swallowing air

• Through their fins

• Using gills

What happens to fish gills if they are exposed to air for too long?

• They dry out

• They collapse

• They expand

• They become stronger

Which of the following is NOT a marine mammal?

• Seal

• Shark

• Whale

• Dolphin

How do marine mammals like whales breathe?

• Through their fins

• Using lungs

• Through their skin

• Through gills

Which marine mammals spend a lot of time on land?

• Sharks

• Whales

• Sea otters

• Dolphins

What is the primary reason marine mammals need to surface?

• To socialize

• To find food

• To breathe air

• To escape predators

What is the blowhole on a whale used for?

• Swimming

• Eating

• Breathing

• Hearing

Which of the following is a fully aquatic marine mammal?

• Sea lion

• Sea otter

• Manatee

• Polar bear

What is a key difference between human and fish breathing?

• Humans breathe through their skin, fish breathe through their mouth

• Humans have a one-way flow, fish have a two-way flow

• Humans breathe air, fish breathe water

• Humans use gills, fish use lungs