Scientists found a whale fossil in the middle of the desert because

• whales live in the desert habitat

• whales used to live in the desert habitat

• there used to be a lake in the middle of the desert habitat

• the desert habitat used to be an ocean.

We can learn about extinct animals by studying their fossils and comparing them to animals living today.

• False

• True

Which is NOT an example that of evidence that dinosaurs looked like big reptiles?

• Dinosaur skulls had similar skulls to reptiles today.

• Some dinosaurs had sharp teeth.

• Scientist found imprint fossils of scaly dinosaur skin.

• Dinosaurs laid eggs.

There are so many different varieties of dogs because....

• people chose to breed dogs with traits they wanted.

• dogs wanted to be different from each other.

• dog babies (puppies) were different from their parents.

• dogs have a lot of puppies.

The green anoles are such good climbers because...

• they like climbing trees.

• they need to be able to climb to get food that is high up in the trees.

• they need to be able to get away from brown anoles on the ground.

• the green anoles that were poor climbers were more likely to get eaten by the brown anoles, so they had few babies.

When habitats change, the kinds of animals and plants that live there change too.

• True

• False