lampreys have 7 gill arches
957 there is alot
two layers of gills on each side
There are two gills located on each side of a perch. The Opercula is the covering that protect the gills.
Tilapia have four pairs of gills, totaling eight gill arches in their gill chamber. Each gill arch supports numerous gill filaments, which are responsible for gas exchange. This structure allows tilapia to efficiently extract oxygen from water as they breathe.
There are three species of the perch: Percaflavescens (Yellow perch), Perca fluviatilis(European perch) and Perca schrenkii (Balkhash perch).
1 perch = 272.25 sq. ft.
10 square perch is 0.0625 acre.
A perch, otherwise known as a rod, or a pole, is equal to 16.5 feet.
The Bald Eagle was perched ontop of a tree.
One Gill is 1/4 pint.
seven layers
There are two Dorsal fins on a perch. The anterior and posterior Dorsal fins.