Question

protothiria avm metathiria thin antar

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Answer 1

Explanation:

Prototheria (/ˌproʊtəˈθɪəriə, -toʊ-/;[1] from Greek πρώτος, prōtos, first, + θήρ, thēr, wild animal) is a paraphyletic subclass to which the orders Monotremata, Morganucodonta, Docodonta, Triconodonta and Multituberculata have been assigned, although the validity of the subclass has been questioned.