Perch

The main purpose of the dorsal fin is to stabilize the animal against rolling and to assist in sudden turns. What is the function of… Read More »What Is The Function Of The Dorsal Fin On A Perch?

The operculum is a hard, plate-like, bony flap that covers the gills of a bony fish (superclass: Osteichthyes). It protects the gills and also serves… Read More »What Is The Function Of The Operculum In A Perch?

Locate the 3 body regions of the perch — head, trunk, and tail. Open the perch’s mouth and observe its bony jaws. The upper jaw… Read More »Do Both Jaws Of A Perch Move?

Fish take in water through their mouths (the nose is for smelling and is not part of the respiratory process). Once through the mouth, the… Read More »Does Fish Use Nose To Breathe?

Most fish have four nostrils–a pair on either side of the face. On each side, water enters through the front nostril, then passes through a… Read More »How Many Nostrils Does A Fish Have?

In ectothermic vertebrates, i.e., fishes, amphibians and reptiles, the sinus venosus aids atrial filling by contracting prior to the atrium (atria). This is facilitated by… Read More »What Does The Sinus Venosus Do In A Fish?

The heart of a fish is a two-chambered heart. It has one Auricle and one ventricle. Blood from all the parts of the body is… Read More »How Does Heart Work In Fishes?

Gills- The gills are located behind and to the outside of the mouth. They consist of many many blood vessels and are in charge of… Read More »What Are Gills In A Perch?

Water taken in continuously through the mouth passes backward between the gill bars and over the gill filaments, where the exchange of gases takes place.… Read More »How Does Gas Exchange Occur At The Gills Of A Perch?

The heart of a fish is a two-chambered heart. It has one Auricle and one ventricle. Blood from all the parts of the body is… Read More »What Is The Function Of The Ventricle In A Fish?