'This organ in frogs has only 3 chambers: 2 atria & 1 ventricle'
heart
COLD-BLOODED ANIMALS: This organ in frogs has only 3 chambers: 2 atria & 1 ventricle
This organ in frogs has only 3 chambers: 2 atria & 1 ventricle
This organ in frogs has only 3 chambers: 2 atria & 1 ventricle
COLD-BLOODED ANIMALS
heart
COLD-BLOODED ANIMALS