Answer:
Power is measured at three different levels pertinent to flapping flight. The first level is metabolic power input (P met) to the muscles, directly of interest to a flying, foraging bird, and generally a realm of study for respiratory, thermal and chemical physiologists.P met is the rate the bird expends chemical energy to supply the flight muscles, and it may be measured using double-labeled ...
Answer:
The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes.
Because they can be differentiated to form insulin-producing cells
