How You are Like a Blue Whale

What is a key difference between fish and blue whales?

• Fish have lungs, while blue whales have gills.

• Fish lay eggs, while blue whales give birth to live young.

• Fish have smooth skin, while blue whales have scales.

• Fish are mammals, while blue whales are reptiles.

What are the bones in a blue whale's flipper compared to?

• Human leg bones

• Human arm bones

• Fish fin bones

• Bird wing bones

What is a characteristic of fish skin?

• Smooth

• Scaly

• Furry

• Feathery

What do scientists use to study the connection between two species?

• Fossils and DNA

• Weather patterns

• Plant growth

• Ocean currents

What are body structures determined by?

• The color of the skin

• The code of DNA

• The size of the animal

• The habitat of the species

What evidence do paleontologists use to study evolutionary connections?

• Fossils, DNA, and other sources

• Weather reports

• Ocean currents

• Plant species

What do fossils from 65 million years ago show evidence of?

• Birds with feathers

• Fish with scales

• Mouse-like creatures with claws

• Reptiles with shells

What do humans and whales have in common according to the text?

• Both have wings

• Both have remnants of tails

• Both have gills

• Both have scales

What did scientists learn from the fossil record?

• All living things have different cell structures

• All living things inherited cell structure from single-celled organisms

• All living things evolved separately

• All living things have unique DNA

What connects humans, whales, fish, and billions of different species?

• Unique evolutionary paths

• A common ancestor population

• Different habitats

• Modern technology