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Backbone
Limbs
There are five groups of vertebrates
HOW DO YOU KNOW IT IS A FISH?
There are two kinds of fishes
Exemples of cartilaginous fish. are
HOW DO YOU KNOW IT IS AN AMPHIBIAN?
A pollywog is
In the adult stage an amphibian
THERE ARE TWO KINDS OF AMPHIBIANS:
It is a reptile because...
THERE ARE FOUR KINDS OF REPTILES:
It is a bird because...
It is a mammal because...
There are three different groups based on reproduction methods:
