Home
Current Affairs January 2024

What is the correct answer?

4

A fish is characterised by the presence of

A. pharyngeal gills

B. paired fins

C. dermal scales

D. all of these

Correct Answer :

D. all of these


Related Questions

What is the correct answer?

4

Sea horse is a

A. mollusc

B. mammal

C. star fish

D. bony fish

What is the correct answer?

4

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

What is the correct answer?

4

Most venomous fish is

A. electric fish

B. saw fish

C. stone fish

D. dog fish

What is the correct answer?

4

Parental care by males is found in

A. hippocampus

B. labeo

C. anabes

D. none of these

What is the correct answer?

4

A homocercal tail is found in

A. teleosts

B. sharks

C. lung fishes

D. rays

What is the correct answer?

4

In Scoliodon, the thermoreceptors are

A. ampullae of lorenzini

B. lateral line system

C. stato-acoustic organs

D. neuromast organs

What is the correct answer?

4

Fish scales originate from one of the following?

A. Endoderm

B. Mesoderm

C. Ectoderm

D. Integument

What is the correct answer?

4

Cod liver oil is a rich source of

A. vitamin A

B. iron

C. calcium

D. vitamin B complex

What is the correct answer?

4

The saw fish Pristis is a member of the class

A. Osteichthyes

B. Chondrichthyes

C. Dipnoi

D. Holocephali

What is the correct answer?

4

Water into the gills of fishes passes through

A. nostrils

B. mouth

C. gill slits

D. swimming bladder

What is the correct answer?

4

Which of the following fishes lack claspers, used for internal fertilization in cartilaginous fishes ?

A. Sharks

B. Stingray

C. Dogfish

D. Catfish

What is the correct answer?

4

Air baldder in fishes does not help in

A. respiration

B. excretion

C. movement

D. none of these

What is the correct answer?

4

A group of cartilaginous fishes specialised for bottom dwelling is

A. sharks

B. whales

C. lung fishes

D. rays

What is the correct answer?

4

Fishes swim in water because they have

A. lungs

B. air bladders

C. cartilaginous skeleton

D. fins

What is the correct answer?

4

Homocercal tail fin with symmetrical upper and lower lobes is present in

A. Scoliodon

B. Electric ray

C. Whale

D. Lung fish

What is the correct answer?

4

In a fish aquarium green aquatic plants are grown for

A. Oxygen

B. Carbon dioxide

C. Fish food

D. Decoration

What is the correct answer?

4

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

What is the correct answer?

4

Chondrichthyes differs from Osteichthves in

A. having gills not covered by operculum

B. presence of lateral line system

C. presence of large scales

D. presence of terminal mouth

What is the correct answer?

4

Pectoral fins are not clearly marked off from the body in

A. sharks

B. rays

C. whales

D. lung fishes

What is the correct answer?

4

Air bladder in fishes does not help in

A. respiration

B. sound production

C. excretion

D. movement

What is the correct answer?

4

In sharks, the scales are

A. placoid

B. cycloid

C. ctenoid

D. rhombiod

What is the correct answer?

4

A fish is characterised by the presence of

A. pharyngeal gills

B. paired fins

C. dermal scales

D. all of these

What is the correct answer?

4

An anamniote group is

A. Primates

B. Aves

C. Crocodiles

D. Pisces

What is the correct answer?

4

The function of swim bladder in fishes is mainly

A. sound production

B. respiratory

C. locomotion

D. hydrostatic

What is the correct answer?

4

Mermaid purse is

A. a shell

B. egg case of skate fishes

C. a colony of skate fishes

D. none of these

What is the correct answer?

4

Chondricthyes is not characterised by the presence of

A. Placoid scales

B. Ventral mouth

C. Operculum

D. Five pairs of gill slits

What is the correct answer?

4

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

What is the correct answer?

4

The flying fish Exocoetus belongs to the class

A. Dipnoi

B. Osteichthyes

C. Cyclostomata

D. Chondrichthyes

What is the correct answer?

4

Which fish is famous for cod liver oil ?

A. Shark

B. Cod

C. Amia

D. Both (a) and (b)

What is the correct answer?

4

Which one of the cartilaginous fishes posses an operculum over the gill ?

A. Trygon

B. Torpedo

C. Chimaera

D. Sphynta