Which of the following is not true about bony fishes ?

Question

Which of the following is not true about bony fishes ?

A. Five pairs of gills covered with operculum

B. Homocercal tail

C. Eight pairs of gills

D. Any of these

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Show all Phylum - Pisces MCQ

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Pectoral fins are not clearly marked off from the body in

A. sharks

B. rays

C. whales

D. lung fishes

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Chondricthyes is not characterised by the presence of

A. Placoid scales

B. Ventral mouth

C. Operculum

D. Five pairs of gill slits

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The pair of fins seen on either side of cloaca of fishes are the

A. pelvic fins

B. cloacal fins

C. anal fins

D. caudal fins

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Which of the following is not characteristic of chondricthyes ?

A. Placoid scales

B. Heterocercal tail fin

C. Ventrally placed mouth

D. Operculum

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A well developed swim bladder is seen in fishes which

A. live at the bottom of rivers

B. live in shallow streams

C. are active swimmers

D. live in sea water

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Water into the gills of fishes passes through

A. nostrils

B. mouth

C. gill slits

D. swimming bladder

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Torpedo, the electric ray, could give a shock of about

A. 10 volts

B. 100 volts

C. 50 volts

D. 150 volts

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Which of the following is not true about bony fishes ?

A. Five pairs of gills covered with operculum

B. Homocercal tail

C. Eight pairs of gills

D. Any of these

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A fish is characterised by the presence of

A. pharyngeal gills

B. paired fins

C. dermal scales

D. all of these

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The saw fish Pristis is a member of the class

A. Osteichthyes

B. Chondrichthyes

C. Dipnoi

D. Holocephali

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Anandromous fishes are those which

A. live in sea water and migrate to fresh water rivers and lakes for breeding

B. live in fresh water and migrate to sea for breeding

C. both (a) and (b)

D. none of these

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Heterocercal tail fin is a characteristic of which group of fishes?

A. cartilaginous fishes

B. bony fishes

C. both (a) and (b)

D. all fishes except sharks

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Mermaid purse is

A. a shell

B. egg case of skate fishes

C. a colony of skate fishes

D. none of these

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Torpedo is a name for

A. sawfish

B. seahorse

C. electric ray

D. sucker fish

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The pair of fins found near the operculum in bony fishes is known as

A. anterior fins

B. ray fins

C. pectoral fins

D. paired fins

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Cod liver oil is a rich source of

A. vitamin A

B. iron

C. calcium

D. vitamin B complex

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In sharks, the scales are

A. placoid

B. cycloid

C. ctenoid

D. rhombiod

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The fish used to control spread of malaria is

A. Pterois

B. Fistularia

C. Gambusia

D. None of these

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A homocercal tail is found in

A. teleosts

B. sharks

C. lung fishes

D. rays

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A muscular fin, aiding in propulsion is

A. dorsal

B. ventral

C. caudal

D. pelvic

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Study of sharks and rays is known as

A. Saurology

B. Traumatology

C. Torpedology

D. Ichthyology

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Most venomous fish is

A. electric fish

B. saw fish

C. stone fish

D. dog fish

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An anamniote group is

A. Primates

B. Aves

C. Crocodiles

D. Pisces

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Which fish is famous for cod liver oil ?

A. Shark

B. Cod

C. Amia

D. Both (a) and (b)

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The function of swim bladder in fishes is mainly

A. sound production

B. respiratory

C. locomotion

D. hydrostatic

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Which of the following does not have lateral line organs ?

A. Whale

B. Tadpole

C. Aquatic urodeles

D. Common Indian dog fish

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Salmon is an example of

A. anandromous migration

B. catadromous migration

C. cartilaginous fish

D. none of these

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Fishes swim in water because they have

A. lungs

B. air bladders

C. cartilaginous skeleton

D. fins

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Parental care is a characteristic of

A. cat fish

B. dog fish

C. flying fish

D. seahorse

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Parental care by males is found in

A. hippocampus

B. labeo

C. anabes

D. none of these

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Accepted Answer

A. Five pairs of gills covered with operculum

Which of the following is not true about bony fishes ?

Correct Answer :

Show all Phylum - Pisces MCQ

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