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Vertebrates - 5th Grade Science

Mammals, Amphibians, Reptiles, Birds, Fish
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Vertebrates
Animals with a backbone.
Vertebrates
5 groups include fish, birds, amphibians, reptiles, and mammals.
Vertebrates
Have an endoskeleton (inside skeleton) protected by a skin covering; blood that flows through blood vessels; lungs or gills for breathing; most have fins or legs.
Vertebrates
Have heads with brains and a nervous system
Cold-blooded Vertebrates
Body temperature changes with the temperature of the air around it.
Warm-blooded Vertebrates
Body temperature stays the same, no matter the temperature of the air around it.
Mammals
Have body hair or fur
Mammals
Breathe through lungs
Mammals
Give birth to live young and nurse them
Mammals & Birds
Warm-blooded
Mammals
Have 3 different kinds of teeth - incisors (for grinding), molars (for chewing), canines (for tearing/biting)
Mammals
Are carnivores, herbivores and omnivores (meat & plant eaters)
Mammals
More than 4,500 species including humans, mice, giraffes, elephants, whales, chimps
Mammals
Have well-developed senses of hearing, sight, smell, taste and touch
Mammals
Most see only black and white
Fish, Amphibians & Reptiles
Cold-blooded
Amphibians
Lay jelly-like eggs in water
Amphibians
Have smooth, moist skin (i.e., no hair, fur, feathers, or scales)
Amphibians
Go through metamorphosis (change of body form & appearance); young tadpoles breathe through gills, adults develop lungs and often live on land
Amphibians
Adults take in additional oxygen through their thin, smooth, moist, scaleless skin
Amphibians
Most are insectivores (meat eaters whose diet consists mainly of insects)
Amphibians
More than 2,400 species
Amphibians
3 main groups are frogs/toads (largest), newts and salamanders
Reptiles
First true land animals
Reptiles
Eggs are leathery and laid on land
Reptiles
Hatched in adult form
Reptiles
Dry, scaly skin (some shed their skin)
Reptiles
Breathe through lungs
Reptiles
Are both carnivores and herbivores
Reptiles
Most have four legs with five claws on each foot
Reptiles
6,000 species including alligators and crocodiles (both have powerful tails); turtles and tortoises (have hard bony shells); lizards and snakes
Birds
Only animals with feathers, wings in place of front legs, and two feet for walking
Birds
Have a bill, but no teeth
Birds
Great eyesight, but a poor sense of smell
Birds
Breathe through lungs
Birds
Light, hollow bones for flying
Birds
Eggs with hard shells laid in a nest where protected until hatched
Birds
Some carnivores, some are herbivores
Birds
More than 9,000 species including humming birds, parrots, ostriches (flightless), and penguins (flightless)
Fish
Covered with scales (thin, bone-like plates)
Fish
Live in salt or fresh water
Fish
Breathe through gills (soft, feathery flaps through which water flows and oxygen is absorbed)
Fish
Cold-blooded
Fish
Hatch young jelly-like eggs
Fish
Some, such as sharks and rays, have skeleton made of cartilage (rubbery substance that can bend)
Fish
Some have skeletons of bone
Fish
There are more than 20,000 species
Fish
Some species are jawless, such as lampreys (eels); cartilage (such as sharks and rays); and bony, such as tuna, catfish, trout (largest group)