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