The main organ of the respiratory system is the lungs.
Abstinence is the best choice because you can absolutely not get pregnant, get someone pregnant, or get an std. <span />
<span>The answer is through the placenta. The placenta is formed in the uterus of the pregnant woman. Its role is in the nourishment of the fetus. The placenta provides the fetus with nutrients and removes waste. The umbilical cord connects the placenta to the fetus and it serves as the transporting passageway. </span>
Small Intestine, mainly Jejunum and Ileum
Provide the answer choices pls
