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. A viviparous animal – Panthera leo


b. A fish possessing a poison sting – Trygon


c. A fish possessing an electric organ – Torpedo


d. An organ, which regulates buoyancy – Air bladder


e. Animal, which exhibits alternation of generation – Obelia


f. Oviparous animal with mammary gland – Echidna


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