A group of cartilaginous fishes specialised for bottom dwelling is
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The saw fish Pristis is a member of the class
Mermaid purse is
Parental care is a characteristic of
Air bladder in fishes does not help in
Chondrichthyes differs from Osteichthves in
Anandromous fishes are those which
Water into the gills of fishes passes through
In a fish aquarium green aquatic plants are grown for
Fish scales originate from one of the following?
Chondricthyes is not characterised by the presence of
Heterocercal tail fin is a characteristic of which group of fishes?
Which of the following is a Shark ?
Which of the following does not have lateral line organs ?
The pair of fins found near the operculum in bony fishes is known as
The fish used to control spread of malaria is
In fishes, the lateral line receptors are
A fish is characterised by the presence of
Pectoral fins are not clearly marked off from the body in
Study of sharks and rays is known as
Placoid scales are found in
In Scoliodon, the thermoreceptors are
Air baldder in fishes does not help in
Torpedo is a name for
The tympanum is absent in
Sea horse is a
Sharks and rays can be distinguished by
A well developed swim bladder is seen in fishes which
Which of the following is not true about bony fishes ?
Which of the following fishes lack claspers, used for internal fertilization in cartilaginous fishes…
The pair of fins seen on either side of cloaca of fishes are the
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