WebApr 7, 2024 · Scales:- Scales are thin, protective plates covering the body of the fish. They aid in the lowering of drag in water (the force that opposes movement) and the protection of the fish from predators. Eyes:- It gives the fish sight, which is mostly used for locating food, predators, and opponents. WebMar 24, 2024 · Université de Genève. Summary: Usually scaled, the skin of fish can also be naked or made up of bony plates. Researchers have reconstructed the evolution of the …
Body Coverings of Animals - SlideShare
The vertebrate jaw probably originally evolved in the Silurian period and appeared in the Placoderm fish which further diversified in the Devonian. Jaws are thought to derive from the pharyngeal arches that support the gills in fish. The two most anterior of these arches are thought to have become the jaw itself (see hyomandibula) and the hyoid arch, which braces the jaw against the braincase and increases mechanical efficiency. While there is no fossil evidence directly to supp… WebBody covering Most fish are covered with scales, which protect the body. Some fish such as catfish have bony plates which serve the same purpose. Other species have very small scales or no scales at all. Body coloring Although selective breeding has produced an number of unnatural colors and patterns, wild fish are still colorful. bird houses for sale amazon
Diodon hystrix – Discover Fishes - Florida Museum
WebMost fish, including salmon, have a layer of scales covering their skin. Scales are small, hard plates, like fingernails, that cover the body for protection. The scales overlap to form a flexible armor plating to protect from predators and bruising. WebThe arapaima is one of the world’s largest freshwater fish—according to data cited by National Geographic, “these giants can reach 9 feet (2.75 meters) long and weigh up to … WebMar 13, 2024 · The lobster has a rigid, segmented body covering ( exoskeleton) and five pairs of legs, one or more pairs of which are often modified into pincers (chelae) with the chela on one side usually larger … damaged jpeg recovery