Diaphragm is found in mammals only. Homeothermy is found in Amphibians, mammals and birds. Birds and mammals and crocodile have four-chambered hearts. Rib cage is found in most tetrapod. Related Theory Diaphragm, dome-shaped, muscular and membranous structure that separates the thoracic (chest) and abdominal cavities in mammals; it is the principal muscle of respiration. The lungs serve as the gas-exchanging organ for the process of respiration.
One of the following is a very unique feature of the mammalian body:
NEET UG 2004 — Botany Animal Kingdom
2004mcqeasy
One of the following is a very unique feature of the mammalian body:
Official previous-year question
Held on 30 Apr 2004 · Verified 9 Jul 2026.
Options
- A
homeothermy
- B
presence of diaphragm
- C
four chambered heart
- D
rib cage.
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