In humans, the placenta is essential to the embryo for RESPIRATION, NUTRITION AND EXCRETION.
The placenta refers to an organ in the uterus of pregnant mammals that is responsible for nourishing and maintaining the unborn baby through the umbilical cord. Th placenta has many functions but primarily it plays critical roles in the nutrition, respiration and excretion of the fetus. Its other functions include: production of hormones, production of immunity for the fetus for prevention from infections, etc. <span />
Answer:
you just draw what the question asks you to do.
Explanation:
Answer:
The Plasma Membrane
Explanation:
This is because that's whats releases the proteins into the cell
Answer: I think B . Like the second one
Explanation:
it is because of they raise the animals then we will have more food . Milk and help from the animals .
