Dinosaurs: Brachiosaurus

1. Brachiosaurus most likely used its long neck to do what?

Eat leaves from tall trees

Signal to other brachiosaurs

See above tall waves while submerged in water

Attract mates

2. From its teeth, scientists can tell the brachiosaurus ate what kind of food?

Fish

Plants

Meat

Insects

3. Brachiosaurus is one of a group of giant, long-necked dinosaurs called what?

Centosaurs

Sauropods

Titanomorphs

Theropods

4. Fossils of brachiosaurus are found in what part of the world?

North America

Europe

Asia

South America

5. Compared to other giant sauropod dinosaurs, the tail of brachiosaurus was what?

Longer and whiplike

Shorter and thicker

Covered with feathers

About the same

6. How do the front legs of brachiosaurus compare to the back legs?

The front legs are longer than the back legs

The front legs are shorter than the back legs

The front legs are the same length as the back legs

The front legs end in sharp claws while the back legs do not.

7. Brachiosaurus's head featured nostrils at the very top so it could do what?

Smell predators from a long way

Breathe under water

Breathe and eat at the same time

Find other brachiosaurs by scent

8. What was the purpose of the hollow spaces in the neck bones of brachiosaurus?

They helped keep the neck rigid and straight

They made the long neck stronger

They helped conduct sound

They made the long neck lighter

9. Which of the following choices best describes the shape of the teeth of brachiosaurus?

Spoon shaped

Chisel shaped

Knife shaped

Oval

10. How long ago did brachiosaurus live?

25 million years ago

65 million years ago

150 million years ago

400 million years ago