Assertion: caecilian's lung | /r/HasProperty | primitive
Facets:
value: compared to those of amniotes
type: OTHER
Source sentences:
text: Like all amphibians, caecilians have primitive lungs that enable them to take in oxygen from the surrounding air, but crucially, these vertebrates also need to absorb additional oxygen through their moist skin.
text: The lungs in amphibians are primitive compared to those of amniotes, possessing few internal septa and large alveoli, and consequently having a comparatively slow diffusion rate for oxygen entering the blood.