Question
Human beings give birth to babies and feed on their mother's milk. Therefore they belong to _______ category.
Answer: Option C
:
C
Humans belong to Phylum Chordata because of the presence of an embryonic notochord. Since this notochord gets replaced with a vertebral column in the fully developed humans, they belong to subphylum Vertebrata. Further, since they have a jawline, they belong to Division Gnathostomata. This division is divided into two superclasses - Pisces(fin-bearers) and Tetrapoda (limb-bearers). Superclass Tetrapoda is sub-divided into 4 major classes - Amphibia, Reptilia, Aves, and Mammalia. Those limb-bearing vertebrates that nourish their young ones with mother's milk are grouped under the class Mammalia. Theria is a subclass to which humans and many other mammals belong.
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:
C
Humans belong to Phylum Chordata because of the presence of an embryonic notochord. Since this notochord gets replaced with a vertebral column in the fully developed humans, they belong to subphylum Vertebrata. Further, since they have a jawline, they belong to Division Gnathostomata. This division is divided into two superclasses - Pisces(fin-bearers) and Tetrapoda (limb-bearers). Superclass Tetrapoda is sub-divided into 4 major classes - Amphibia, Reptilia, Aves, and Mammalia. Those limb-bearing vertebrates that nourish their young ones with mother's milk are grouped under the class Mammalia. Theria is a subclass to which humans and many other mammals belong.
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