1. Notes: Vertebrates and Invertebrates
1.) Animals are classified into groups according to how they are related to other animals

2. 2.) Invertebrates are animals that do not have a backbone…97% of all animals are invertebrates!

3. a.) Some invertebrates are sponges, jelly fish, coral, worms, mollusks (snails), echinoderms (starfish) and arthropods (animals with an outside skeleton)

4. b. A common arthropod you are familiar with is an insect
b. A common arthropod you are familiar with is an insect. All insects have 3 body parts (head, thorax, abdomen) and 3 pairs of legs.
1. Head (antennae)
2. Thorax (3 pairs of legs)
3. Abdomen

5. Is a Rolly Polly an insect?
Is a spider an insect?

6. c.) Insects belong to the
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta

7. d.) Complete metamorphosis: Egg, Larva, Pupa, Adult (4 Stages) Examples: butterflies, ants, beetles
e.) Incomplete (gradual) metamorphosis: Egg, Nymph, Adult (3 Stages) Examples: Dragonfly, grasshopper, cricket

8. 3.) Vertebrates (also called Chordates) are animals that have a backbone
a.)They have an internal skeleton.
b.) Some vertebrates are mammals, birds, reptiles, amphibians, bony fish, cartilaginous fish and jawless fish