'Earthworms have no lungs or gills; they breathe via this'
skin
COLD-BLOODED ANIMALS: Earthworms have no lungs or gills; they breathe via this
Earthworms have no lungs or gills; they breathe via this
Earthworms have no lungs or gills; they breathe via this
COLD-BLOODED ANIMALS
skin
COLD-BLOODED ANIMALS