I would say that all are necessary but the most important one's (in my opinion) are [2, [5, [7, and [9.
Answer:
Expulsion- the baby is born
.
Contractions- the labor process begins
.
Placental- the placenta is delivered
.
Dilation- the cervix begins to open.
Explanation:
The process of birth is the different steps or processes involved that led up to the emergence of the baby into the outside world. This biological process involves various steps or procedures that are all important and forms part of the whole experience of childbirth.
Contractions are the movements of the muscles, indicative of the start of the labor process. Then, dilation occurs where the cervix begins to open for the baby to emerge out of the womb. The expulsion indicates the birth of the baby and the placenta is also delivered, thus ending in a successful delivery.
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Answer:
respiratory
Explanation:
oxygen goes in carbon dioxide goes out
