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Spiders have _____ to absorb salts and wastes while humans have microscopic subunits in the kidneys called _____ to filter blood.

User Ziv Levy
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2 Answers

4 votes
nephrons ; Malpighian tubules.
User Dan Ovidiu Boncut
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nephrons........... Malpighian tubules i think
User Arun Gopalpuri
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