How do we classify vertebrates?

animalfeatures

multicellularcan not

make own food

can move

eat other organisms

•animals w/ backbones that surround spinal cord

5 classes of vertebrates

fish

amphibians

reptiles

birds

mammals

mammalsmammals

• hair or fur

• warm-blooded• mother’s milk• eg: squirrel

reptilesreptiles• scales• cold-blooded• lay eggs• do not feed young• eg: crocodile

Sea turtles hatch from

eggs laid on beaches.

birdsbirds• feathers• warm blooded• lay hard shelled eggs- fed by parents

Baby birds are born needing to be fed and protected by an adult bird.

amphibiansamphibians• cold-blooded• soft, moist skin• live in water after hatching from eggs- use gills to breathe• adults live on land-use lungs to breathe• ex: frog, salamander

fishfish• live in water• cold-blooded• scales• get oxygen thru. gills• lay eggs

Legs go straight down

Legs stick out from sides of bodies

Vertebrates

4 legs

Scales

LizardsDinosaurs

Dinosaur were like birds b/c:• Feathers• Wishbone• 4 chambered heart like birds

& mammals

It’s time to play….

a. b.

c. d.

3 2 1Choose !mammalsCorrect Answer !

Mammals are not cold blooded.

fish

amphibians reptiles

a. b.

c. d.

3 2 1Choose !multicellular

eat other organisms

make their own food

can moveCorrect Answer ! No animal can make its own food.

a. b.

c. d.

3 2 1Choose !feathers

fur or hair

wishbone 4 chambered heart

Correct Answer !

Dinosaurs and birds do not have fur or hair!

a. b.

c. d.

3 2 1Choose !vertebrates 4 legs

fur scalesCorrect Answer ! Dinosaurs and lizards never had fur !

a. b.

c. d.

3 2 1Choose !get oxygen through gills

feathers

lay eggs live in water

Correct Answer ! Fish do not have feathers !

a. b.

c. d.

3 2 1Choose !hair or fur scales

warm-blooded drink mother’s milk

Correct Answer ! Mammals do not have scales !

In your notebook, draw a picture of an animal from each vertebrate group ( fish, amphibians,

etc.)

Label 2 characteristics - fur, scales, feathers, moist skin, etc.

Use your notes!

BIRD- ostrich

Has feathers

Lays hard shelled eggs

MAMMAL- hamster

Warm-blooded

Drinks mother’s milk