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tree of life (invertebrates (crustaceans, arthopods, arachinids, worn,…
tree of life
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characters of invertebrates:crustaceans live in the water,arthopods have jointed legs,arachinids lay eggs,worns have segments,some insects fly,sponges don´t move and mollucs are so smart.
Fish and birds have Warm blood,amphibiams and reptiles have cold blood and mammals have almost the hold skin cover with fur.
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