A. Hagfish
B. Fresh water fishes
C. Bony fishes
D. None of these
Related Mcqs:
- 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 - Amount of water required to excrete 1gN of Urea is_________?
A. 1 ml
B. 50 ml
C. 100 ml
D. 150 ml - Which of the following nephrons play important role in production of concentrated urine?
A. Crotical
B. Medullary
C. Juxtramedullary
D. None of these - Which of the following animal excrete nitrogenous waste mainly as uric acid?
A. Hydra
B. Planaria.
C. Humans
D. Birds. - Aquatic animals excrete nitrogenous waste commonly in the form of_____________?
A. Ammonia
B. Urea
C. Uric acid
D. Trimethylamine oxide - The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood.
A. 10 ml
B. 20 ml
C. 30 ml
D. 40 ml - Marine fish can keep their internal environment hypertonic with respect to the surrounding salty water by retaining.
A. Excessive urea which will increase their internal solute concentration and prevent body shrinkage in hypertonic environment
B. Trimethyl alanine
C. Ammonia
D. Trimethylamine oxide - A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone?
A. Kidney surgery
B. Burring a hole and removing the stone manually (nephrolithotomy)
C. Extracorporeal Shock wave lithotripsy
D. None of these - The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called________?
A. Homeostasis
B. Hemostasis
C. Osmoregualtion
D. Thermoregulation - Which of the following pairs of fins in a fish body are paired?
A. Dorsal and ventral.
B. Pectoral and Pelvic.
C. Tail and anal
D. All of these
