A. Sound is a form of mechanical energy
Step- by - step - explaination
Hi!!
The answer is <span>They regulate water intake and excretion.
Hope this helps!
-Payshence xoxo</span>
Answer:
(A) (B) (E) those should bee the right answers
Explanation:
<span>The average human red blood cell is roughly 6 to 8 micrometers wide. The width of a pin is this problem is defined as 1000 micrometers. Assuming we use the smallest size of a blood cell, then we divide 1000 by 6, and we find that roughly 166.66 (or 166 if you are rounding down) red blood cells will fit.</span>
