Torpedo, the electric ray, could give a shock of about
10 volts
100 volts
50 volts
150 volts
Correct Answer :
D. 150 volts
Related Questions
An anamniote group is
Primates
Aves
Crocodiles
Pisces
Which of the following is a Shark ?
Dasyatis
Chimaera
Sphyma
Torpedo
Sharks and rays can be distinguished by
the nature of their scales
the position of the mouth
the position of gill slits
the kind of the tail fin
Parental care by males is found in
hippocampus
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The saw fish Pristis is a member of the class
Osteichthyes
Chondrichthyes
Dipnoi
Holocephali
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Placoid scales
Ventral mouth
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all types fishes
only cartilaginous fishes
only bony fishes
sea dwelling fishes
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dog fish
bony fishes
both (a) and (b)
all fishes
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live at the bottom of rivers
live in shallow streams
are active swimmers
live in sea water
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dorsal
ventral
caudal
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Which of the following is not true about bony fishes ?
Five pairs of gills covered with operculum
Homocercal tail
Eight pairs of gills
Any of these
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sawfish
seahorse
electric ray
sucker fish
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mollusc
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star fish
bony fish
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Placoid scales
Heterocercal tail fin
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Fish food
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pharyngeal gills
paired fins
dermal scales
all of these
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electric fish
saw fish
stone fish
dog fish
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Scoliodon
Electric ray
Whale
Lung fish
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cycloid
ctenoid
rhombiod
The fish used to control spread of malaria is
Pterois
Fistularia
Gambusia
None of these
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lungs
air bladders
cartilaginous skeleton
fins
Torpedo, the electric ray, could give a shock of about
10 volts
100 volts
50 volts
150 volts
Salmon is an example of
anandromous migration
catadromous migration
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none of these
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lung fishes
rays
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cartilaginous fishes
bony fishes
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