2nd. The placenta doesnt begin forming till the end of the first trimester.
Protein replenishes the muscle and helps build it. Think of it like this: if you eat a lot of unhealthy foods and workout, you will gain no muscle; if you consume protein and workout, your muscle will grow stronger.
Answer:
The purpose is to not have to do mouth to mouth CPR (conventional CPR)
Explanation:
A Polio-Free U.S. Thanks to Vaccine Efforts. ... Polio has been eliminated from the United States thanks to widespread polio vaccination in this country. This means that there is no year-round transmission of polio virus in the United States. Since 1979, no cases of polio have originated in the United States.