The answer would be 2 placenta. A thin walled sac that surrounds the fetus during pregnancy. The sac is filled with amniotic fluid(liquid made by fetus) and the amnion(the membrane that covers the fetal side of the placenta)
Answer:
a nurse who injured her back while moving a heavy patient
Public health professionals are spokespeople who harness the science of disease prevention, prolong life and encourage good health within organizational contexts of informing people, communities, organizations and wider society. This is done throuhg analytical data usage and understanding what the needs for individuals are to prevent disease, things such as promoting hand washing, vaccinations and use of condoms fall into this category.