- (A) Calcium oxalate
- (B) Calcium phosphate
- (C) Uric acid
- (D) All of these
Biology Mcqs
- (A) Crotical
- (B) Medullary
- (C) Juxtramedullary
- (D) None of these
- (A) Protonephridium
- (B) Metanephridium
- (C) Malpighian tubules
- (D) Nephrons
- (A) Ammonia
- (B) Urea
- (C) Uric acid
- (D) Trimethylamine oxide
- (A) Nephrostome
- (B) Nephridiopore
- (C) Flame cell
- (D) Anus
- (A) 1 ml
- (B) 50 ml
- (C) 100 ml
- (D) 150 ml
- (A) Creatinine
- (B) Trimethyamine oxide
- (C) Xanthine
- (D) None of these
- (A) Stored excretory products in vacuoles, at a concentration that leads to crystal formation.
- (B) Accumulate waste in leaves, which fall in autumn.
- (C) Production of black wood in the center.
- (D) Excrete some of the waste materials directly into soil, occasionally using them as a chemical weapon against other competing plants.
- (A) CO2
- (B) H2O
- (C) O2
- (D) Both A and B
- (A) Hagfish
- (B) Jelly Fish
- (C) Star Fish
- (D) Bony fishes
