Animals Through Time

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.

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 brown anoles, so they had fewer babies.

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.

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

• Dinosaur skulls had similar skulls to reptiles today.

• Some dinosaurs had sharp teeth.

• Scientists found imprint fossils of scaly dinosaur skin.

• Dinosaurs laid eggs.

Becky has light-colored skin. During the summer, sometimes her skin turns red if she

stays in the sun too long.

• Becky’s skin color is a trait she got from her parents.

• Becky’s skin color changed because of her experience in the summer.

• Both.

A polar habitat today was always a polar habitat in the past.

• True.

• False

We can learn about extinct animals by studying their fossils

and comparing them to animals living today.

• True.

• False

When habitats change, the kinds of animals and plants that

live there change, too.

• True.

• False.

Herbivores eat...

• plants.

• meat.

• both plants and meat.

Carnivores eat...

• plants.

• meat.

• both plants and meat.