A. Hydra
B. Planaria.
C. Humans
D. Birds.
Related Mcqs:
- Aquatic animals excrete nitrogenous waste commonly in the form of_____________?
A. Ammonia
B. Urea
C. Uric acid
D. Trimethylamine oxide - The main nitrogenous waste formed in the body of earthworm is/are___________?
A. Ammonia
B. Urea
C. Uric acid
D. Trimethylamine oxide - The elimination of toxic nitrogenous waste and excess water in man is by______?
A. Excretion
B. Circulation
C. Reproduction
D. PollutionSubmitted by: Yousuf Sanjrani
- Which of the following fishes excrete large volume of diluted urine?
A. Bony Marine fishes
B. Fresh water fishes
C. Both depending upon the surrounding water
D. None of these - Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?
A. Hagfish
B. Fresh water fishes
C. Bony fishes
D. None of these - Amount of water required to excrete 1gN of Urea is_________?
A. 1 ml
B. 50 ml
C. 100 ml
D. 150 ml - Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?
A. Gibberellins
B. Cytokinins
C. Auxins
D. Ethene. - Each turn of DNA contain ____________ nitrogenous base pairs?
A. 5
B. 10
C. 20
D. 25 - A bond formed by linkage between -OH of carboxyl group of one amino acid and H of amino group of another amino acid which releases water is called__________?
A. Phosphodiester linkage
B. Glycosidic bond
C. Peptide bond
D. Hydrogen bond - In plants, which of the following is a waste product produced both during photosynthesis and respiration?
A. CO2
B. H2O
C. O2
D. Both A and B
