What Are the Characteristic Features of Pisces? Give an Example

Pisces, commonly known as fish, are a diverse group of aquatic animals with several characteristic features that differentiate them from other vertebrates. Some key features of Pisces include:

• Gills: Fish breathe through gills, which extract oxygen from water.
• Scales: Most fish have scales covering their bodies, which provide protection and reduce water resistance.
• Fins: Fish have various types of fins, including dorsal, pectoral, and caudal fins, which help them swim and maintain balance.
• Cold-Blooded: Fish are typically cold-blooded (ectothermic), meaning their body temperature is regulated by the surrounding environment.
• Streamlined Body: Fish have streamlined bodies to reduce resistance while swimming through water.

An example of a fish is the goldfish (Carassius auratus), a popular aquarium species known for its vibrant color and ease of care.