What does osteichthyes mean?

1. What does Osteichthyes mean literally?
2. What does the name class Osteichthyes mean?
3. What are Osteichthyes and chondrichthyes?
4. Are sexes separate in Osteichthyes?
5. What fish are in the class Osteichthyes?
6. Which of the following belongs to class Osteichthyes?
7. Do bony fish have teeth?
8. Which of the following is not associated with Osteichthyes?
9. How do Osteichthyes breathe?
10. What do class Osteichthyes eat?
11. Where are Osteichthyes found?
12. What is the body covering of class Osteichthyes?

What does Osteichthyes mean literally?

Definition of osteichthyan

: a fish of the class Osteichthyes : a bony fish Extant jawed vertebrates, or gnathostomes, fall into two major monophyletic groups, namely chondrichthyans (cartilaginous fishes) and osteichthyans (bony fishes and tetrapods).—

What does the name class Osteichthyes mean?

1. class Osteichthyes - a class of fish having a skeleton composed of bone in addition to cartilage. Osteichthyes. Craniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; birds; mammals. bony fish - any fish of the class Osteichthyes.

What are Osteichthyes and chondrichthyes?

Chondrichthyes refers to a class of fishes that includes those with a cartilaginous skeleton while Osteichthyes refers to a class of fishes that includes those with a bony skeleton.

Are sexes separate in Osteichthyes?

Sexual maturity means that they are capable of producing offspring. Through this process, most Osteichthyes develop into either males or females. There are some hermaphroditic Osteichthyes, meaning they have both male and female sex organs, but they do not make up the majority of this class.

What fish are in the class Osteichthyes?

Class Osteichthyes includes all bony fishes. Like all fishes, Osteichthyes are cold-blooded vertebrates that breathe through gills and use fins for swimming. Bony fishes share several distinguishing features: a skeleton of bone, scales, paired fins, one pair of gill openings, jaws, and paired nostrils.

Which of the following belongs to class Osteichthyes?

Trygon, Scoliodon and Pristis belong to Chondrichthyes. Clarias (Magur) is a cat fish which belongs to Osteichthyes.

Do bony fish have teeth?

Most bony fishes have two sets of jaws made mainly of bone. ... Teeth are replaced multiple times also in most bony fishes, but unlike cartilaginous fishes, the new tooth erupts only after the old one has fallen out. Jaws probably originated in the pharyngeal arches supporting the gills of jawless fish.

Which of the following is not associated with Osteichthyes?

The option that is not a characteristic of the class Osteichthyes is b) a cartilaginous skeleton.

How do Osteichthyes breathe?

But instead of lungs, bony fishes have an organ called gills. Water is swallowed by the fish, passed over the gills, and then interacts with the gill filaments, which help the fish to extract dissolved oxygen from the water.

What do class Osteichthyes eat?

Food Preferences and Resources

Some of the animals common in the diets of bony fishes include: annelid worms, marine snails, mussels, clams, squids, crustaceans, insects, birds, amphibians, small mammals, and other fishes.

Where are Osteichthyes found?

They are found in tropical, temperate, and polar seas as well as virtually all fresh water environments.

What is the body covering of class Osteichthyes?

Such diversity defies a simple description; however, the osteichthyes tend to have the following characters: gills covered by an operculum, one or more dorsal fins, usually one anal fin, most have a homocercal tail and a body covered with scales, usually overlapping.