Question

Which of the following statement(s) is/are false?
(A) In Torpedo, the electric organs are capable of generating electric solid shock
(B) In amphibian, the skin is moist and they have thick scales
(C) Birds are poikilothermous animals
(D) All protochordate are marine
(E) Amphioxus has a specialized heart

• A. A, B, and E
• B. B, D and E
• C. B, C and E
• D. A, C and E

Answer 1

The correct option is C B, C and E

Torpedo is a cartilaginous fish. It is also known as an electric ray. An electric organ is found in this fish which is a modified muscle. It can give shock averaging 100-400 volts.
Skin of amphibian is moist, smooth and scaleless. Numerous mucous glands are found in the skin, which keeps it moist. Birds are warm-blooded homeothermic animals, i.e. body temperature remains almost constant. Protochordate is exclusively marine. Heart is absent in Amphioxus . Hence, options B, C and E are false.