What is the main reason blue whales are not considered fish?

• They have smooth skin instead of scales.

• They live in the ocean.

• They are the largest creatures in the ocean.

• They have fins.

How do blue whales and humans breathe?

• Through gills

• Through lungs

• Through their skin

• Through blowholes

What evidence do paleontologists use to determine the connection between species?

• Fossils and DNA

• Color of the skin

• Size of the animal

• Habitat of the animal

What do blue whales and humans have in common regarding their offspring?

• They lay eggs

• They give birth to live young

• They leave their young in the ocean

• They do not care for their young

What is a shared body structure between humans and blue whales?

• Back limbs

• Flippers

• Lungs

• Gills

What is the significance of the small leg bones in blue whales?

• They are used for swimming

• They are remnants from ancestors that walked on land

• They help in breathing

• They are used for balance

What common ancestor do humans, whales, and other mammals share?

• A large fish

• A tiny animal with four legs

• A bird

• A reptile