Which two structures are connected by the umbilical cord?

uterus and the vagina

amniotic sac and amniotic fluid

embryo and the cervix

embryo and placenta

To confirm when to exclude children from school, it's recommended that you refer to guidelines from which of the following organizations? a. national association for child care professionals b. academy of family practices c. american academy of pediatrics d. national association for the education of young children

How can a driver best determine the safest speed to drive?

Explain why you believe physician assisted suicide should or should not be legalized in more states across the us.