Question

Which of the following statement is true about lungfishes?

• A. They seldom swim.
• B. They swim like eels.
• C. They creep over paired fins.
• D. Both B and C.

Answer 1

The correct option is D Both B and C.

In lungfishes, the air bladder is modified for gaseous exchange. These fishes can respire through both gills and lungs. They are facultative air breathers as they normally breathe through gills but when the water is less, they respire through lungs.

The body of lungfishes is elongated like that of eels and their pelvic and pectoral fins are threadlike with the help of which lung fishes swim and creep over or crawl over the bottom.

Hence, both options B and C are correct. So, the correct answer is 'Both B and C'.