What is the difference between chondrichthyes and osteichthyes?

The main difference between Chondrichthyes and Osteichthyes is that the Chondrichthyes is the class of bony fish whose endoskeleton is made up of cartilages whereas Osteichthyes is the class of cartilaginous fish whose endoskeleton is made up of bones.

1. What are the major differences between cartilaginous and bony fish?
2. What is the main anatomical differences between the Agnatha Chondrichthyes and osteichthyes?
3. What are the key distinguishing features between the bony fish Osteichthyes and the cartilaginous fish chondrichthyes )?
4. What is the difference between bone and cartilage?
5. What are the differences between hagfish and lampreys?
6. How are hagfish and lampreys different from all other vertebrates?
7. What phylum and subphylum is the class Osteichthyes under?
8. What are the main characteristics of Osteichthyes?
9. What does Osteichthyes stand for?
10. What are fishes similarities and differences?
11. What is the difference between osteocytes and chondrocytes?
12. What are the main structural differences between cartilage and bone?
13. What is difference between bones and muscles?

What are the major differences between cartilaginous and bony fish?

As the name suggests, “bony fish” have a skeleton composed of only bones while a cartilaginous fish has a skeleton made entirely of cartilage.

What is the main anatomical differences between the Agnatha Chondrichthyes and osteichthyes?

The bony fish differ from the Agnatha because they have jaws. The bony fish differ from the Chondrichthyes because the bony fish have skeletons made of bone. Most bony fish have scales, some have armor plating, and others, such as the catfish, lack any kind of covering over the skin and thus are completely naked.

What are the key distinguishing features between the bony fish Osteichthyes and the cartilaginous fish chondrichthyes )?

The main difference between Chondrichthyes and Osteichthyes is that the Chondrichthyes is the class of bony fish whose endoskeleton is made up of cartilages whereas Osteichthyes is the class of cartilaginous fish whose endoskeleton is made up of bones.

What is the difference between bone and cartilage?

The main difference between bone and cartilage are listed below. Bones are the hard, inelastic and a tough organ that forms part of the vertebral skeleton. Cartilage is a soft, elastic and flexible connective tissue that protects the bone from rubbing against each other. ... Cartilage cells are known as chondrocytes.

What are the differences between hagfish and lampreys?

Hagfish is an eel-like slime producing marine jawless fish while lamprey is an eel-like jawless fish that lives in coastal and freshwaters. Hagfish does not possess vertebra while lamprey has vertebra. Hence, hagfish is not considered as a vertebrate while lamprey is a vertebrate.

How are hagfish and lampreys different from all other vertebrates?

Hagfishes are eel-like scavengers that live on the ocean floor and feed on dead invertebrates, other fishes, and marine mammals ([Figure 2]a). ... Lampreys are similar to hagfishes in size and shape; however, lampreys have a brain case and incomplete vertebrae. Lampreys lack paired appendages and bone, as do the hagfishes.

What phylum and subphylum is the class Osteichthyes under?

bony fish, (superclass Osteichthyes), any member of the superclass Osteichthyes, a group made up of the classes Sarcopterygii (lobe-finned fishes) and Actinopterygii (ray-finned fishes) in the subphylum Vertebrata, including the great majority of living fishes and virtually all the world's sport and commercial fishes.

What are the main characteristics of Osteichthyes?

Class - Osteichthyes

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 does Osteichthyes stand for?

Osteichthyes (/ˌɒstiːˈɪkθi. iːz/), popularly referred to as the bony fish, is a diverse taxonomic group of fish that have skeletons primarily composed of bone tissue. They can be contrasted with the Chondrichthyes, which have skeletons primarily composed of cartilage.

What are fishes similarities and differences?

Fish are obviously animals because they move, they have sensory organs (eyes, mouth, barbels), and they have body structure (skeletons, skin, etc.). They breathe oxygen. They eat other organisms to survive. Fish are different from other animals because they live in water.

What is the difference between osteocytes and chondrocytes?

Osteocytes are developed in the mucoid connective tissue and a mature osteocyte contains a single nucleus. Chondrocytes are involved in the maintenance of cartilage. ... Osteocytes are involved in the maintenance of bone tissue. This is the difference between Chondrocytes and Osteocytes.

What are the main structural differences between cartilage and bone?

They are both made up of cells embedded in an extracellular matrix. It is the nature of the matrix that defines the properties of these connective tissues. Cartilage is thin, avascular, flexible and resistant to compressive forces. Bone is highly vascularised, and its calcified matrix makes it very strong.

What is difference between bones and muscles?

Bones shape our body and help us to stand up straight. Muscles are attached to bones; they help us walk and run and smile. All the bones in our body make up our skeleton – from the top of our skull to the tips of the phalanges at the end of our toes. Muscles stretch across our bones and are attached with tendons.