Question

Which of the following statement are true/ false
In Torpedo the electric organs are capable of
generating strong electric shock to paralyze the prey
Bony fishes use pectoral, pelvic, dorsal, anal and
caudal fishes in swimming
Amphibian skin is moist and has thick scales
Birds are poikilothermous animals
The most unique mammalian characteristic is the
presence of milk producing mammary glands by which
the young ones are nourished.

• A. A ,B and C are true ; D, E are false
• B. A, B and E are true; C and D are false
• C. A ,D and E are true ; B and C are false
• D. A, B and D are false, C and E are false
• E. Only D is true; A, B, C and E are false

Answer 1

The correct option is B A, B and E are true; C and D are false

Torpedo or electric ray has electric organs that are used to generate electric shock to paralyze the prey.

Bony fishes use all the 5 kinds of fins for swimming.

Amphibians do have moist skin but they do not have scales on their body.

Birds are homeothermic and not poikilothermic because they can maintain temperature by homeostasis.

All mammals produce milk from mammary glands to nourish their young ones.

So the correct answer is option "B"

('a, b and e are true, c and d are false.' )