Question

Which among the following is an incorrect statement about circulatory system in Pisces?

(a) Their circulatory system is of closed type

(b) They have two-chambered heart i.e. they have an auricle and a ventricle

(c) They have a single circulatory system with gills i.e. oxygenated blood is pumped to body parts only once

(d) Auricle is also called receiving chamber and ventricle is also called as pumping chamber

I got this question in class test.

My question is taken from Animal Kingdom in portion Animal Kingdom of Biology – Class 11

Answer 1

Correct answer is (c) They have a single circulatory system with gills i.e. oxygenated blood is pumped to body parts only once

To explain: Circulatory system is of closed type in Pisces. They have two-chambered heart i.e. they have an auricle and a ventricle. They have a single circulatory system with gills i.e. heart receives blood only once. Auricle is also called receiving chamber and ventricle is also called as pumping chamber.