In the wiki page of Biophysics:
Biophysics spans all scales of biological organization, from the molecular scale to whole organisms and ecosystems.
But after searching on the internet; the dominant application of physics in biology that I see is at the molecular scale. In the wiki page Mathematical biophysics, there is a lot of interesting information, but it is only about mathematical knowledge applied to biophysics, not physics itself.
What, if any, physics knowledge (based on principles and laws of physics) can be applied to biology in the sense of organisms and ecosystems?