Give an example for each of the following
(a) A viviparous animal
(b) A fish possessing a poison sting
(c) A fish possessing an electric organ
(d) An organ, which regulates buoyancy
(e) Animal, which exhibits alternation of generation
(f) Oviparous animal with mammary gland
(a) Chimpanzee
(b) Torpedo
(c) Electric ray
(d) Air bladder
(e) Obelia
(f) Platypus
