Review of Unit 3

This animal is classified as ....

• A. mammal

• B. amphibian

• C. fish

• D. bird

The vertebrate below which reproduces by giving a birth is ....

• A. mammal

• B. amphibian

• C. reptile

• D. fish

The following statements about the characteristics of birds are correct, except ….

• A. Birds are the only animals with feathers on their bodies

• B. Birds have beak, two wings and two legs

• C. Birds reproduce by laying eggs

• D. Birds live in water

The invertebrate is shown in ....

• 
• 
• 
• 

Crabs has ... legs.

• A. four

• B. six

• C. eight

• D. ten

The invertebrate which has sense organs in its environment is ....

• 
• 
• 
• 

Classifying animals helps us to ... and understand them.

• A. name

• B. deliver

• C. identify

• D. discover