<em>At noon the sun is directly overhead the sun rays fall vertically on the body so the shadow is very short.</em>
<em>So the rays fall vertically on the body. in mornings and evenings the rays fall at inclined position. So shadows are long at mornings or evenings.</em>
The nerve impulse would not be transmitted
I'm pretty sure that it's C. I'm not quite sure though.
If there where a decrease in the number of decomposers there would be a increase in the number of producers and consumers.