Question

Which of the following facts is true about scales in fish?

Answer 1

Scales in fish provide protection from predators and parasites. Fish scales are made of a hard substance called "cosmoid" that acts as armor, protecting the fish from predators and parasites. They also help the fish to swim more efficiently by reducing drag and turbulence in the water.

Answer 2

Fish scales serve as a form of protection against predators and parasites while also aiding in streamlining their body for efficient movement through water. The size and shape of scales can vary greatly depending on the species of fish. Some fish, such as catfish, lack scales altogether.