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Why is ammonia excretion practical mainly for aquatic animals?
AIt is insoluble and forms pellets
BIt is the least toxic waste
CIt needs no energy to make
DIt is highly soluble and diffuses away
Answer & Solution
Correct answer: D. It is highly soluble and diffuses away
Ammonia is very toxic but readily soluble, so it can diffuse across body or gill surfaces into abundant water.
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