Answer :
Choice A i think
Amphibia is the class of vertebrates which is considered to be the first to develop lungs. This allowed amphibians to live successfully on land as terrestrial organisms. Ichthyostega was the first primitive amphibians with nostrils and lungs. Amphibians adopted themselves to live on land with developed lungs.
To make changes to it or to take out some genes of interest
Administer fluids to podsibly flush out viagra?? im nit 100% sure but it sounds like he could have taken too much
