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Mammals get rid of metabolic waste to retain homeostasis. The kidneys filter urea to retain water. This is called A respiration b circulation c reproduction d excretion
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Mammals get rid of metabolic waste to retain homeostasis. The kidneys filter urea to retain water. This is called

A respiration
b circulation
c reproduction
d excretion

User Andrew Kirkegaard
by
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2 Answers

2 votes

Answer:

D

Step-by-step explanation:

User SGT Grumpy Pants
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4 votes

Answer:

D

Step-by-step explanation:

User Scudsucker
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