Answer:
The correct answer is option D. "generally is of higher velocity, although it is masked by reduced turbulence".
Explanation:
In most rivers, the downstream portion is both wider and deeper than the upstream portion. This means that there is more water in the downstream portion, which in consequence results in the river having a higher velocity. However, this is masked by a reduced turbulence since a higher amount of water tend to overcome more easily all the obstacles that can generate friction.
Well, villi helps the intestine absorb, therefore, it helps the intestine absorb more nutrients. I hope this helps!
I believe the correct answer from the choices listed above is the last option. Life on Earth originated from primitive bacteria. <span> It is generally agreed that all </span>life<span> today evolved by common descent from a single primitive lifeform and the lifeform from the choices is bacteria. Hope this helps.</span>
HI the answer to the bproblem is Synthesis Reaction