- A Aves
- B Reptilia
- C Mammalia
- D Amphibia
Correct answer: C. Mammalia
Explanation: Mammalia is characterized by mammary glands for nourishing young, hair on the skin, sweat and oil glands, and a four-chambered heart.
Concept context
Phylum-level classification of the animal kingdom from Porifera to Chordata, based on body symmetry, coelom, and segmentation. One of the most example-heavy chapters for NEET.