Just to add on over time they have develiped a tuff outer layer to stop weather and insects from harming them.
Answer:
the official residence of a chief of state (such as a monarch or a president) b chiefly British : the official residence of an archbishop or bishop. 2a : a large stately house. b : a large public building. c : a highly decorated place for public amusement or refreshment a movie palace.
Explanation:
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Spider (echinoderms have no freshwater or land based organisms)
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