VERTEBRATES ANIMALS. 
VERTEBRATES.
Matching exercise (by Juan Luis Serrano Pedrosa).
Match the items on the right to the items on the left.
Number 1 are the...
Number 2 are the...
Number 3 are the...
Number 4 are the...
Number 5 are the...
Number 6 are the...
grills.
scales.
fins.
wings.
feathers.
legs.