In class-Chondrichthyes, the mouth is located ventrally and the teeth are modified placoid scales, which are

In which class of fishes mouth is located ventrally?

In which class of fishes mouth is located ventrally?

In which class of fishes mouth is located ventrally?

In which segment is the mouth located in earthworm?

In which segment is the mouth located in earthworm?

Teeth in chondrichthyes are modified

Teeth in chondrichthyes are modified

Read the following matches about chordates and it's characteristics. I. Petromyzon - belongs to cyclostomata and are endoparasites on some fishes. II. Scoliodon - a Chondrichthyes in which teeth are modified placoid scales. III. Hippocampus - a cartilaginous aquarium fish known as a sea horse. IV. lchthyophis is a limbless viviparous amphibian with direct development. Select the incorrect statements ?

Read the following matches about chordates and it's characteristics. I. Petromyzon - belongs to cyclostomata and are endoparasites on some fishes. II. Scoliodon - a Chondrichthyes in which teeth are modified placoid scales. III. Hippocampus - a cartilaginous aquarium fish known as a sea horse. IV. lchthyophis is a limbless viviparous amphibian with direct development. Select the incorrect statements ?

Name the segment in which mouth is located.