asked 143k views
2 votes
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

2 Answers

2 votes

Answer:

D

Step-by-step explanation:

4 votes

Answer:

D

Step-by-step explanation:

answered
User Scudsucker
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