Question

An example of a Marsupialia is
A. Elephant
B. Horse
C. Macropus
D. Rabbit

Answer 1

Hint: Members of the mammalian subclass Marsupialia are called Marsupials. Australia and America are endemic to all extant marsupials. A common distinctive feature exhibited by most of these species is that they hold their young ones inside a pouch. Kangaroos, Wallabies, Koalas, Opossums, etc. are well known marsupials.

Complete answer: In the Macropodidae family, Macropus is a marsupial genus. It has thirteen existing species divided into three subgenera. The genus has four large terrestrial kangaroo species, two wallaroo species and eight extant wallabies (a ninth species is extinct). The eastern grey kangaroo is the type of species often classified as pouch mammals. Marsupial mammals are the offspring poorly developed because of very short gestation cycles and are carried in pouches before they mature. For these reasons, Macropus is known as Marsupialia. Rabbits, horses and elephants produce offspring that are well-developed and have long gestation periods. One of the two existing subspecies of Equus ferus is the horse (Equus ferus caballus). It is an ungulate, odd-toed mammal belonging to the taxonomic family Equidae. Rabbits are small mammals of the family Leporidae of the order Lagomorpha.
So, option C is the correct answer.

Note: The clade originating from the last common ancestor of extant metatherians is represented by marsupials. They give birth, like other Metatheria mammals, to relatively undeveloped young people who often live for a certain amount of time in a pouch present in the abdomen of their mothers. Nearly 70 per cent of the 334 existing species occur in the Australian continent.