C. It’s the most intelligent answer I’m stuck between that or B but I’m almost positive it’s c
Answer:
2 materials are exchanged between fetal and maternla blood
Explanation:
i just took this test and this was correct
Answer:
but you need to do this at home
Explanation:
Nucleotides is the answer: they have a phosphate group, a deoxyribose sugar, and a nitrogenous base.
<span>reaction of CO2 and H2O</span>
