Question

Whale : Mammal :: Rat : ?
A) Rodent
B) Mammal
C) Amphibian
D) Reptile

Answer 1

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Option B is Correct

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Answer 2

B) Mammal.

Both the animals are mammals, while whale lives in water, rat lives on the land. Yet both of them belong to the same species.

Mammals are vertebrates that include the class Mammalia and is characterized by the presence of mammary glands.

The mammary glands in the females of this species produce milk for feeding the young ones.

They are also characterized by a neocortex that is a part of the brain, hair or fur, and there are three middle ear bones.

There are some 5,450 species of mammals on Earth.

The largest orders of this species include the rodents, Soricomorpha (shrews and others) and bats.

The next three from the family are the Primates that include apes, humans, monkeys, etc.

The Cetartiodactyla are also mammals that includes even-toed ungulates and whales and the Carnivora   like dogs, cats, and others.