MCQ
The least toxic nitrogen waste of urine is
- AAmmonia
- BAllantois
- CUrea
- ✓Uric acid
Small amount of nitrogenous waste substance are also produced during the metabolism of nucleic acids.
Ammonia is the most toxic followed by urea and uric acid the latter is the least toxic.
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Statements:
$A.$ On dry land it would die due to lack of O_2 if its mouth is forcibly kept closed for a few days.
$B.$ It has fourchambered heart.
$C.$ On dry land it turns uricotelic from ureotelic.
$D.$ Its lifehistory is carried out in pond water.