Kingdom Animalia

Reptiles

100

All reptiles have this skin:

Scaly

200

Reptiles evolved from:

Amphibians

300

There are how many main reptile groups:

4

400

Reptiles were the world's first:

Amniotes

500

Most reptiles have this kind of heart:

3-Chambered

Fish

100

Fish have this that extracts oxygen from the water: 

Gills

200

Fish are covered in 

Scales

300

Fish reproduce by:

laying eggs

400

Over this many of fish species are threatened by extinction:

1000

500

There are over this many known species of fish

30000

Birds

100

Birds are the only animals with 

Feathers

200

There are how many main bird groups

Two

300

Birds evolved from 

Dinosaurs

400

Birds communicate using: 

Sound and color

500

There are about this many known bird species

10,000

Amphibians

100

All amphibians must live near:

Water

200

There are this many major types of amphibians

3

300

Amphibians' blood is: 

Cold-blooded

400

All amphibians undergo

Metamorphosis

500

They consume their prey:

Whole

Mammals

100

They have this covering their body

Hair/fur

200

Mammals are the only class that can give this to their young

Milk/ live birth

300

Mammals metabolism is

Warm-blooded

400

All mammals share the same

Basic Body Plan

500

There are approximately this number of mammal species

5000