A sperm makes its way down the Fallopian tube and burrows itself into the egg
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>
Answer:
Explanation: I think it’s the first one
B. The electron transport chain is the final step on cellular respiration in which 32 ATP is made and water
