Question

a)Veins carry oxygen-rich blood from the heart to all parts of the body.
b)Ammonia is the main excretory product of human being.
c)Uric acid is the main excretory product of fishes.
d)Urea is the main excretory product of birds, lizards etc:
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Answer 1

Answer:

c) uric acid is the main excreatory product of fishes