Hi the powerful abductor muscle of the upper arm is the deltoid.
Hope this helps you.
Answer:
the organisms internal structures could not be viewed as a scanning electron microscope only provides images of the surface!
Explanation:
Environmental scientists are using GPS ( It is effective but expensive) aerial monitoring (Quick but not the easiest), RFID tags, (mostly for long-term monitoring) and hidden cameras are used to study polar bear behavior without interruption to their environment.
