Answer:
I can not see the picture?
Lean body mass <span>is the body mass attributed to non-fat body components, such as bone, muscle, and internal organs. In general, lean body mass is the mass of the body excluding the fat. It is important in fitness regimes. Most body builders want to maintain their lean body mass and decrease their body fat. </span>
This is all i know about caves: Caves are large, natural holes beneath the surface of the earth. Underground passages and caves are found in rocky landscapes across the world. They are found in areas with a lot of limestone, a common type of rock. They can be created in various ways, but most caves are hollowed out of rock by water.
In this question, there are no options given to choose from. So i would answer this question based on my knowledge. The most likely cause of the observed variation is adaptation and evolution. The birds of that island adapted to the food source and then they evolved as per the requirement of the place and food source.
