NEPHRONS-The Kidneys' Filtration Units. Nephrons are microscopic tube-like structures in the kidneys that filter the blood and cause wastes to be removed.They are the most basic structures of the kidney's anatomy, and are an integral part of the urinary system.Each kidney contains over one million of them.EPHRONS-The Kidneys' Filtration Units. Nephrons are microscopic tube-like structures in the kidneys that filter the blood and cause wastes to be removed.
A member of the sunfish family, the bluegill is one of the most popular freshwater game fish with anglers because of its tasty flesh and the fact that it puts up a pretty good fight for its size.
Bluegills are just under half as deep as they are long, and they are very narrow, with even the. largest of the species under 1âinch thick. The bluegill is aptly classified a panfish. Looking at one from. the side, it is compressed, almost discâshaped, like a frying pan (Fig. 1). The panfish shape is fitting, since.