Question

Characterstics of pisces

Answer 1

they have 3 chambered heart 
they are warm blooded animals 
they respire from gills
they include's fish etc

Answer 2

$\huge \text{Characteristics\: Of\: Pisces}$

➜ Body has an exoskeleton composed of dermal scales.

➜ Locomotor structures are in the form of paired and unpaired extensions of the body, called fins. Paired fins help in balancing.

➜ Eespiratory organs are in the form of gills. Gills slits may be exposed covered by operculum

➜ Heart is two chambered, with one Auricle one ventricle. It receives and pumps only deoxygenated blood.

➜ Nervous system has a brain, spinal cord and 10 pairs of cranial nerves.