Question

Largest living land animals belong to order of
A) Proboscidea
B) Hyracoidea
C) Carnivora
D) Sirenia

Answer 1

Hint:Animals are the eukaryotic multicellular organisms. Animals have some characteristics which differentiate them from others like they are able to move, consume organic materials, able to reproduce, perform metabolism, etc.

Complete answer:
>Proboscidea : The Prob0scidea is a taxonomic order of afrotherian mammals.This order contain only one living family i.e. Elephantidae and several other extinct families.The order Proboscidea was first described by J. Illiger in 1811 and this order contained the trunked animals. The largest living land mammal belongs to this order, that is African elephant.This order contains all largest land mammals of the world.
>Hyracoidea: Hyraxes belong to the order Hyracoidea.These animals are also called as the dassies.They are characterized by the small, thickest, and herbivorous (animals who eat only plant parts and plant products) mammals.
>Carnivora : Carnivora is a order of placental animals that eat only flesh or meat of other animals.The members of the order Carnivora are called as the carnivores or carnivorous animals.The order carnivore is the fifth largest order of mammals.The smallest carnivore mammal is least weasel and the largest carnivorous animal is southern elephant seal.
>Sirenia : Sirenia are commonly called as the sea-cows.Sirenia is an order of herbivorous animals.These animals inhabit the swamps, rivers, marine wetlands and coastal marine waters.
Therefore, it has been clear from the above discussion that the largest living land animals belong to the order of Proboscidea.

Hence, the option A is the correct answer.

Note:Animals have complex interactions with each other and with other living organisms as well as abiotic (non living) components. Animals belong to the kingdom Animalia. The scientific study of animals is called Zoology.