Question 10
AdaptationWhich is the most important adaptation of a bony fish to life in water?
- A.The possession of a streamlined shape
- B.The presence of overlapping scales
- C.The covering of the body by thin film of slime
- D.The possession of a caudal fin.
Show the answer and explanation
Answer: A (The possession of a streamlined shape)
Explanation
A streamlined (spindle-shaped) body cuts down water resistance, so the fish can swim easily. Scales and slime protect the body, and the tail fin gives push.