Nitrogenous waste leaves as ammonia through gills in fish, as urea in urine for mammals like us, and as uric acid in paste form for birds. The type depends on water availability—urea needs more water to flush, but is less toxic than ammonia.
Par papa ki dukaan se maine seekha ki kuch dawaiyon ki packaging bhi aisi hoti hai—toxic cheezein safe container mein daalni padti hain, jaise jaanvar apna waste apne paani ke hisaab se pack karte hain.
Aaj NEET ki coaching mein sir ne kaha, "Human kidneys filter urea," par mujhe yaad aaya ki pahadon mein kum pani mein rehne waale insects uric acid banate hain—toh yeh sirf availability ki baat nahi, survival ki bhi hai.
#exams#study
Jump in to reply — no account needed.