I don’t know the answer to this question
Answer:
D.
Explanation:
Children will have birth defects and cognitive disabilities.
Cells do not require oxygen to perform anaerobic activity
Answer:
Explanation:
The umbilical cord is a narrow tube-like structure that connects the developing baby to the placenta. The cord is sometimes called the baby's “supply line” because it carries the baby's blood back and forth, between the baby and the placenta.
