Answer: The earth is made up of three different layers: the crust, the mantle and the core. This is the outside layer of the earth and is made of solid rock, mostly basalt and granite. There are two types of crust; oceanic and continental. Oceanic crust is denser and thinner and mainly composed of basalt.
Explanation:
To classify animals and distinguish them
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<span>Crustaceans
these are the members that have 3 body parts!!!!
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