I am pretty sure that your answer is C or D. Im not sure between the two which. Sorry.
The specialized organ that provides nourishment and filters away waste products from the developing baby is called the placenta.
<span>The placenta is a multifunctional organ that develops during the pregnancy. It connects the developing fetus to the uterine wall and it functions are to allow nutrient uptake, thermo-regulation, production of hormones waste elimination, protection (fight against infection) and gas exchange via the mother's blood supply. <span>The fetus's umbilical cord develops from the placenta.</span></span>
1.6 kilometers. The conversion for the metric system can be shown by taking the letters KHDu(unit, in this case meters)dcm and placing the decimal in the current measurement (here it would be KHDu.dcm, or 1600.000) then moving it through the measurements (here it would change to K.HDudcm, or 1.600000).
