Answer:
b. placenta
Step-by-step explanation:
The placenta is an organ formed during pregnancy whose main role is to promote communication between mother and fetus and thus ensure the ideal conditions for the development of the fetus. The main functions of the placenta are:
- Provide nutrients and oxygen to the baby;
- Stimulate the production of hormones essential for pregnancy;
- Provide immunological protection to the baby;
- Protect the baby against impacts on the mother's belly;
- Eliminate waste produced by the baby, such as urine.
The placenta is a fundamental organ for the development of the baby, however during pregnancy may occur unwanted changes in the placenta, bringing risks and complications for the mother to the baby.