Which is the most important adaptation of a bony fish life in water?

Which is the most important adaptation of a bony fish 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
Correct Answer: Option B
Explanation
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