Animal Kingdom

Fish:

• Live in water 
• Breathe with gills
• Moist skin covered in scales
• Most lay eggs
• Cartilage or bony skin
• Cold-blooded

Amphibian:

• Moist skin
• Lay their eggs in water
• Larvae breathe with gills
• Adults breathe with lungs
• Adults live on land
• Cold-blooded

Reptile:

• Dry, scaly scales
• Lay eggs
• Breathe with lungs
• Cold-blooded

Bird:

• Covered in feathers
• Lay eggs with hard shells
• Have wings
• Warm-blooded
• Breathe with lungs

Mammal:

• Body covered in hair or fur
• Feed young on milk
• Warm-blooded
• Breathe using lungs

True Worms:

• Body is tubular and/or made up of segments
• Tube-like digestive system

Flat worm:

• Breathe through their skin
• Unsegmented body

Sponges:

• Take in water through pores (little holes) in their bodies from which the filter (take out) little bits of food

Cnidarians:

• Hollow body with specialized cells (stringers) that they use for capturing prey
• Live in water

Molluscs:

• Most live in sea
• Most have shells
• Unsegmented body

Echinoderms:

• A skeleton makeup of five plates
• Tube feet
• Live in the sea

Arthropods:

• Jointed legs
• divided into four further sub-groups

Crustaceans:

• Most are aquatic
• Body divided into three parts
• Most breathe with gills
• Hard outer shell

Myriapods:

• Many pairs of legs
• Single pair or antennae
• Simple eyes

Insects:

• Body divided into three parts
• Three pairs of legs and two pairs of wings
• One pair or antennae on head
• Compound eyes
  

Arachnids:

• Body divided into two parts
• Four pairs of legs and no wings
• No antennae