Answer:
The skeletal system provides a frame to
support and protect the body and allows the
body to move.
 
        
             
        
        
        
An example of an ecosystem that benefits people could be the ocean. 
The ocean regulates the temperature of the earth, allowing a more comfortable place for people to live.
Hope this helps!
        
             
        
        
        
<span>The sun's
energy is the primary source of energy for all surface phenomena and life
on Earth. Combined with the material of the Earth (including the molecules
held close by the Earth's gravitational force called the atmosphere),
this energy provides for the immense diversity of life forms that are
found on the Earth. We will now look in detail at solar energy and its
interplay with the constituents of the Earth's atmosphere. </span>