Answer:
I. Weight
Explanation:
Weight is environmental and not inherited
The food we eat can change our weight; it can cause weight gain...
Thermal energy to Gravitational PE to Kinetic energy.
When translated:
In that sense, in a sense,
What you meant must be the adaptive advantage of the frogs' lungs. Frogs are considered as amphibians wherein the have this unique ability to reside either on land or in water. Their specialised lungs could be responsible to these which makes them capable of breathing oxygen in water and land.