The answer to your question would be B
Maybe because food was here before the population even started to grow?♀️
The hollow bones of birds which keep birds light weight for flying is an example of adaptation. These hollow bones are also called pneumatized bones which mean they're filled with space for air.
Hope this helps!
Proteins play the role of unwinding and separating a double-stranded DNA molecule.
The transpiration pull is just one of the mechanisms that explain the movement or translocation of water in plants, particularly water ascent in tall trees. There is no single exacting explanation as yet for the ascent of water but several theories have been proposed. Of these, the one which has gained wide support is the cohesion-tension theory which recognizes the crucial role of<span> transpiration pull</span><span> as a driving force. These theories are briefly described below.. I dont know maybe this might be helpful</span>
