vertebrate characteristics

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MAMMALS:

themost evolved groups of vertebrate animals

their bodies are covered with hair or fur

they have mmamary glands

warm blooded

respiration is pulmonary

reproduction is viviparous

2-4 legs

FISH:

have a backbone

they live in salt orfresh water

they are the biggest group with the largest group of species

their bodys are made by bones or cartilage

they have dins to move throught the water

they have gills to breath on the water

they can be hervivores or carnivores

their reproduction can be external or internal fertilization

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AMPHIBIANS:

vertebrate animals that have adapted to land but they need aquatic environment to live and reproduce

they are considered more evolved tan fish

there are two tipes anura and urodela anura do not have the tail when they reach into adults and urodela conserve their tails whrn they reach adulthood.

they have hairless moist skin

they donot have a neck

breathe trought lungs gills and skin

they lay eggs in wateror inmoist places.

the word amphibians means two lives.

BIRDS:

terrestial vertebrates with feathered bodies

descend from reptiles

two of their limbs are feathered

they have a beak but no teeth

they have a developed sense of sight

warm blooded animals

can be carnivores,hervivores or eat insect

breathe using lungs

internal reproduction

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REPTILES:

1 first vertebrates to reach land

skin covered with scales

cool blooded

4 limbs

carnivores

breathe using lungs

internal reproduction