Question

What is the major difference in the respiratory system of a perch compared with that of a frog a pigeon and a pig?

Answer 1

perch contains two chambered heart whereas frog contain three chambered heart, pigeon and pig with 4 chambered heart

Answer 2

$\huge\bold\red{Question:-}$

What is the major difference in the respiratory system of a perch compared with that of a frog a pigeon and a pig?

$\huge\bold\green{Answer:-}$

Perch breathes w/ gills, gills contain capillaries. H2O enters pharynx through mouth and passes over gills. O2 moves into capillaries.