Clarias gariepinus is

Which one of the following fish is being illegally introduced for aquaculture purposes and is posing a threat to the indigenous catfishes of Indian rivers? (a) Clarias gariepinus (b) Nile perch (c) climbing perch (d) Protopterus

Which one of the following fish is being illegally introduced for aquaculture purposes and is posing a threat to the indigenous catfishes of Indian rivers? (a) Clarias gariepinus (b) Nile perch (c) climbing perch (d) Protopterus

Which one of the following fish is being illegally introduced for aquaculture purposes and is posing a threat to the indigenous catfishes of Indian rivers? (a) Clarias gariepinus (b) Nile perch (c) climbing perch (d) Protopterus

Clarias batrachus is found

As compared to Clarias, Trygon has

As compared to Clarias, Trygon has

Is viviparous pair (A) Betta, clarias (B) Saw fish, sting ray (C) Dog fish, flying fish (D) Rohu, cattla

Match list I with list II and choose the correction option {:(,"List I(Organism)",,"List II(Excretory structure)"),("(A)","Cockroach",,"(1) Nephridia"),("(B)","Clarias",,"(2) Malpighian tubules"),("(C)"," Earthworm",,"(3) Kidneys"),("(D)","Balanoglossus",,"(4) Flame cells"),("(E)","Flatworm",,"(5) Proboscis bland"):}

How many of the given animals are chordates with vertebra and jaws ? Sea hare, Doliolum , Stingray, Petromyzon , Salpa, Ichthyophis , Macropus, Clarias , Branchiostoma ,chelone, Balanoglossus

How many of the given animals are chordates with vertebra and jaws ? Sea hare, Doliolum , Stingray, Petromyzon , Salpa, Ichthyophis , Macropus, Clarias , Branchiostoma ,chelone, Balanoglossus