Vertebrates
Mammals
Aquatic Mammals
100

Invertebrates are animals without this.

What is internal skeleton/backbone?

100

This is the largest land mammal?

What is the elephant?

100

This is the largest animal in the world.

What is blue whale?

200

Most invertebrates are small besides these 2 exceptions.

What are the giant squid and octopus?

200

These are the 5 common characteristics of mammals.

What are warm blooded, have hair, give birth to live young, feed their young milk, and breathe air through lungs?

200

Name 3 mammals that live in the ocean.

What are whales, dolphins, and porpoises?

300

These are the 5 major groups of vertebrates. 

What are mammals, birds, fish, amphibians, and reptiles?

300
These are the 2 exceptions to mammals that give birth to live young. 
What are the spiny anteater and the platypus?
300

This description fits this aquatic mammal: small, cubby, blunt nose, dorsal fin is a triangle. 

What is a porpoise?

400

Vertebrates account for this percent of all animals.

What is 3%?

400

This is how bats detect objects. 

What is sending high pitched sound waves/sonar? 

400

This is what some whales have instead of teeth.

What is baleen?

500

This is the most distinguishing difference between plants and animals.

What is plants make their own food and animals do not?

500

This is the name a small mammal that lives on rocky mountain slopes. 

What is the pika?

500

This is a fluke.

What is a tail fin that moves up and down?