.
Vertebrates have endoskeletons
Vertebrates have exoskeleton
Vertebrates are not flexible
Vertebrates don't have backbones
Scales
Swim bladders
Gills
Fins
Scales
Cartilaginous scales
Jawless mouths
Asexual reproduction
It separates the brain and nerves
It does not grow with the animal
It's on the outside of the animal
It supports an animal's muscles
No time at all
Their whole lives
Summers
Winters
Mammals
Reptiles
Fish
Amphibians
Tails
Legs
Thumbs
Noses
Endotherms
Insects
Friends
Ectotherms
Amphibian's
A cat's
Reptiles
Fish
Before
When
After
Option 4
Inside your car
On the moon
Of the air or water around it
In Montana
Extreme temperatures
Constant temperatures
Arctic temperatures
Zero gravity environment
Cannot produce their own heat
Need small amounts of food
Cool off by sweating
Maintain a constant body temperature
Sweat
Beaks
Down
Wings
Food sources change with the seasons
They cannot regulate their body temperatures
They store digested food in a crop
They want to go on vacation
Gizzards
Incubation
Air sacs
Hollow bones
Mammals
Frogs
Invertebrates
Fish
Are cold blooded
Eat a lot of food
Generate body heat
Generate body hair
Provide insulation and energy
Lead to health problems
Make running difficult
Make hunting difficult
Very ugly
Small and lived on land
Large and lived in water
Small and lived on Mars
Placenta
Twinkie
Incubation
Legs
Develops outside
Develops under
Develops inside
Develops on top of
Fingers
Hair
Teeth
Milk
Premature
Before
After
Option 4
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