A. Bony Marine fishes
B. Fresh water fishes
C. Both depending upon the surrounding water
D. None of these
Related Mcqs:
- 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 - Which of the following animal excrete nitrogenous waste mainly as uric acid?
A. Hydra
B. Planaria.
C. Humans
D. Birds. - Amount of water required to excrete 1gN of Urea is_________?
A. 1 ml
B. 50 ml
C. 100 ml
D. 150 ml - Aquatic animals excrete nitrogenous waste commonly in the form of_____________?
A. Ammonia
B. Urea
C. Uric acid
D. Trimethylamine oxide - Which of the following fishes contained lungs?
A. Lamprey
B. Perch
C. Plaice
D. Dipnoi - Which of the following marine fishes are considered direct descendents of fresh water ancestors?
A. Hagfish
B. Jelly Fish
C. Star Fish
D. Bony fishes - Which of the following nephrons play important role in production of concentrated urine?
A. Crotical
B. Medullary
C. Juxtramedullary
D. None of these - Deoxygenated blood first enters in _________ part in fishes?
A. Sinus venosus
B. Right atrium
C. Left atrium
D. Conus arteriosus - Fishes, most of the invertebrates and amphibians are examples of ________ animals?
A. Endotherms
B. Ectotherms
C. Heterotherms
D. Homeotherms - Scolidon or dog fish belong to the group of fishes called__________?
A. Cartilaginous fishes
B. Bony fishes
C. Running fishes
D. Jawless fishes
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