Question

Distinguish between bony fishes & cartilaginous fishes in a tabular format. [5 points each excluding examples]

Include atleast 3 examples of both types.

Points : 20 ☺

Answer 1

I just know three points.. So, Sorry for that

1. Bony Fish- Skeleton is made up of cartilage and bones

1. Cartilaginous Fish- Skeleton is only made up of cartilage.

2. Bony Fish- Their mouth is terminal

2. Cartilaginous Fish - Their mouth is present at the lower part.

3. Bony Fish- Eg: Tuna, rohu fishes

3. Cartilaginous Fish- Eg: Sharks.

Answer 2

Bony fishes:-

1. The mouth of bony fishes is at terminal end of the head.

2. Swim bladder is present.

3. They have cycloid and ctenoid scales.

4. Their fertilization is external.

5. They are also known as osteichthyes.

6. Sea horse, salmon, rohu, etc. are the examples of bony fishes.

Cartilaginous fishes:-

1. The mouth of cartilaginous fishes is on the ventral side of the head.

2. Swim bladder is absent.

3. They have placoid scales.

4. Their fertilization is internal.

5. They are also known as chondrichthyes.

6. Rays, sharks, skates, etc. are the examples of cartilaginous fishes.