Hi the answer to your question would be the signals may be transmitted by Integrins.
Hope this helps.
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 ...
False
Many people can live in one area, but have close to no one living somewhere else.
I think the answer is b. wavelength (:
