State the characteristics of the members of class Pisces.

Explanation

i.Members of class Pisces are poikilothermic (cold-blooded) .
ii.They are marine or fresh-water animals.
iii.They have a spindle-shaped body to minimize water resistance.
iv.They have paired or unpaired fins for swimming. Tail fin is used as a steering organ during swimming
v.Exoskeleton is in the form of scales and endoskeleton is either bony or cartilaginous.
vi. Respiration takes place through gills. e.g. Rohu, Pomfret, sea horse, shark, electric ray, sting ray, etc.