For instance, sharks and rays are two common kinds of cartilaginous fish. These are the fish that need to swim to breathe, because the forward movement is what pushes water through their gills. In contrast, bony fish have a special bone called the operculum that lets them use their gills without ram ventilation.
What is the difference between bony and cartilaginous fish?
Technically, the most obvious disparity between bony vs cartilaginous fish comes from the fact that the skeleton of bony fish is made of bones alone , while that of cartilaginous fish is made of cartilage. There are more than 20,000 fish species in the world.
What are the differences between cartilaginous fish and bony fish quizlet?
What are some difference between cartilaginous fishes and bony fishes? Cartilaginous fishes have a cartilage skeleton . Bony fishes have a bony skeleton. Bony fishes use a swim bladder, but cartilaginous fish use the fluid dynamics of their fins and tails to lift.
Which of the following is not a characteristic of cartilaginous fishes?
Cartilaginous fishes do not contain gill cover/operculum . So, the correct answer is ‘Gill cover/operculum’.
Which is not found in bony fish?
They do not have fin spines , but instead support the fin with lepidotrichia (bone fin rays). They also have an operculum, which helps them breathe without having to swim. Bony fish have no placoid scales.
Which of the following is an example of bony fish?
Examples are sharks, rays, dog-fish, skates, sturgion. Osteichthyes: These are fishes with bony skeleton. Examples are Tuna, Sardines, Codfish, Salmon, Trouts, Herring etc.
What word best describes cartilaginous fish?
: any of a class ( Chondrichthyes ) of fishes (such as a shark, ray, or chimaera) having the skeleton wholly or largely composed of cartilage — compare bony fish, jawless fish.
What can you infer about cartilaginous fish from their name?
Cartilaginous fish are fish that have a skeleton made of cartilage, rather than bone . All sharks, skates, and rays (e.g., the southern stingray) are cartilaginous fish.
What are the key distinguishing features between the bony fish?
Bony fishes share several distinguishing features: a skeleton of bone, scales, paired fins, one pair of gill openings, jaws, and paired nostrils . Osteichthyes includes the largest number of living species of all scientific classes of vertebrates, more than 28,000 species.
What are 3 examples of cartilaginous fish?
3 Cartilaginous Fish Eggs. Cartilaginous fishes (chondrichthyes) represent the oldest surviving jawed vertebrates and, as the name suggests, have a skeleton made out of cartilage. They include sharks, rays, and skates (elasmobranchii) and chimeras (holocephali) .
Which organ is absent in cartilaginous fish?
The swim bladder is similar to human lungs in the way that it expands and deflates. Chondrichthyes (cartilaginous fish) use an oil filled liver to control their buoyancy instead of the swim bladder.
What characteristics do organisms in the class Chondrichthyes have in common? Jawed fish, lack swim bladder, have cartilaginous skeletons , energy efficient, store low-density oils for buoyancy, angled fins/wings for lift, and multiple rows of teeth.
What are the 2 types of bony fish?
The bony fish are divided into two classes: ray-finned fish and lobe-finned fish .
What are the 5 examples of bony fish?
- Tuna.
- Atlantic cod.
- Red lionfish.
- Giant frogfish.
- Seahorses.
- Ocean sunfish.
Is the circulatory system of a bony fish open or closed?
All bony fish in the class Osteichthyes possess a closed circulatory system . ... The purpose of the system is to circulate blood, nutrients, and gases around the fish’s body, and to exchange gases with the outside world. The heart helps to pump the blood and nutrients to the vessels and throughout the body.
What are the two major categories of osteichthyes bony fish?
Osteichthyes, or bony fishes, includes two major groups: Sarcopterygii, or lobe-finned fishes, and Actinopterygii, or ray-finned fishes . The characteristics that unite this diverse group include lungs or a gas-filled swim bladder derived from lungs, segmented fin rays, bone, and bony scales.
