Question
Question: Air bladder is found in which of the following fishes? A. Trygon B. Torpedo C. Labeo D. Carc...
Air bladder is found in which of the following fishes?
A. Trygon
B. Torpedo
C. Labeo
D. Carcharodon
Solution
Fishes are described as a life form rather than a taxonomic group, belonging to the category of aquatic vertebrates. They can be differentiated from other animals such as amphibians, birds, reptiles, and mammals by the combined presence of gills for breathing, fins for locomotion, and the undeniable fact that they are found in water bodies.
Step by step answer: Fishes are members of the phylum Chordate. They possess characteristic features like gill slits, a notochord, a dorsal hollow nerve cord, and a tail. These features differentiate them from other animals. Most fishes are ectothermic, i.e. they are cold-blooded. This implies that they can adapt to different atmospheric conditions and can regulate their body temperatures based on the surrounding environmental temperature changes. The great white shark and tuna have the ability to hold higher core temperatures. Fish can communicate in their underwater environments through the use of acoustic communication. Fishes can be found in abundance in most water bodies and nearly all aquatic environments, from high mountain streams to the abyssal and even hadal depths of the oceans.
A swim bladder is a specialized organ that is filled with air that helps to ensure that the fish neither sinks nor floats too much by regulating a stable buoyancy in water. All fishes have a swim bladder. Swim bladders are also known as air bladders, gas bladders, or fish maw. Air bladders help fishes swimming without having to waste energy by allowing them to remain at their current water depth. The swim bladder also functions as a resonating chamber that produces or receives sound. Air bladders are present in fishes that have a skeletal structure made out of bones. Swim bladders are predominantly utilized by bony fishes. Sharks have a cartilaginous skeleton and do not have swim bladders. Alike sharks; rays, stingrays, and skates have a cartilaginous skeleton and do not have swim bladders.
-Trygon: The popular name of a trygon fish is Stingray. Stingray belongs to the Dasyaridae family. They inhabit muddy habitats in shallow coastal waters and often bury themselves in sediment.
-Torpedo: The popular name of a torpedo fish is Electric ray. These are a group of rays, which have a flattened cartilaginous skeleton with enlarged pectoral fins. They are well known to generate electric discharge, ranging from 8 to 220 volts for self-defence and stun prey.
-Labeo: Labeo rohita is commonly known as rohu, Roho, or rui. They belong to the carp family and have a skeleton made out of bones. These are typical fresh-water fishes in India.
-Carcharodon: These are a species of sharks belonging to the family Lamnidae. The only extant species of sharks, i.e. the species of sharks that have not gone extinct are the great white shark.
Hence option C is correct.
Note: According to Fish Base, a comprehensive database of information on fish used by zoologists and researchers, fishes are considered to be the most diverse animal species belonging to the class of vertebrate with almost 34,300 described species of fish.