1. Animal Phyla

2. Animals
Animals are multicellular organisms that cannot make their own food (heterotrophs)
They are grouped into individual phyla
based on things such as body structure and how they reproduce

3. Backbones All animals can be grouped into two categories Invertebrates
Animals without a back bone
95% of all animals are in this category
Sponges, Earthworms, sand dollars, snails, lobsters, insects

4. Vertebrates have bilateral symmetry
Their right half looks the same as their left half

5. Vertebrates Vertebrates Animals with a back bones
Fish, amphibians, reptiles, birds, mammals

6. Phylum Porifera Porifera- made up of sponges
Live in water, but do not float around
Live attached to a surface
Filter the water for food

7. Phylum Annelida Annelida- invertebrates
Most worms- earth worms and leaches
Live in moist soil, or calm freshwater
Segmented bodies (bilateral symmetry)
Organ Systems

8. Phylum Echinodermata Invertebrates that live in the ocean
Bodies are arranged like spokes on a wheel
Radial Symmetry
Sea Stars, Sea urchins, and sand dollars
Have a nervous system, but no brain

9. Phylum Mollusca Mollusks
Squid, octopuses, clams, mussels, snails, slugs
Most live in the sea
Except snails and slugs
Have a shell
Move using a foot (or tentacles)

10. Arthropoda Largest group of invertebrates Live everywhere
Appeared before dinosaurs
Scorpions, lobsters, dragon flies, ladybugs, ants
All have jointed appendages (legs)
Exoskeleton
Most developed nervous system of invertebrates

11. Vertebrates Vertebrates Animals with a back bones
Fish, amphibians, reptiles, birds, mammals

12. Phylum Chordata All Vertebrates belong to this phylum
All Chordates have a notochord, a rod shape supporting structure in their back at some stage in their developement

13. Class Classes are the next division below Phyla
There are 5 classes of Vertebrates we need to know
Bony Fish
Amphibians
Reptiles
Birds
Mammals

14. Bony Fish Largest class of Fish All Fish live in Water
All have gills to filter water
Lay eggs
They have two chambered hearts that circulate blood

15. Amphibians Spend the first part of lives in water
Hatch eggs in water (like fish)
As they grow their bodies change
Smooth skin, 2 pairs of legs
Frogs, toads, salamanders

16. Reptiles Live in or near water (generally)
Have lungs, scales, and lay eggs
Eggs are leathery
Hearts are much like birds and mammals

17. Birds Two legs and two wings Lay hard shelled eggs
Most fly, but not all (penguin)
Have feathers for flight and insulation
Bones are hollow
Can regulate body temp (fish, reptiles and amphibians cannot)

18. Mammals All have fur or hair Females produce milk to feed young
Most have 4 legs (2 arms and 2 legs, 2 legs and 2 wings)
Whales, bears, cats, deer, kangaroo, humans