The placenta provides oxygen to the baby and excretes carbon dioxide into your bloodstream.
meaning that the baby does not simply absorb oxygen from a women's bloodstream. blood and gas transports occur through the placenta, also the placenta delivers oxygen-rich blood through the umbilical vein not artery
hope this helps
<span>Juana performs the calculation below. 6.05 + 3.156 + 5.0
</span> 1
6.05
+ 3.156
<span><u>+ 5.0 </u>
</span> 14. 206 =>The answer has 5 significant figures.
Here are the three rules on determining how many significant figures are in a number that you must remember:
<span>-Non-zero digits are always significant.
-Any zeros between two significant digits are significant.
<span>-A final zero or trailing zeros in the decimal portion ONLY are significant.</span></span>
<span>1. O negative
2. O positive
3. A negative
4. A positive
5. B negative
6. B positive
7. AB negative
<span>8. AB positive</span></span>
