Answer:
the branch of biology and medicine concerned with the study of embryos and their development.
Explanation:
sorry if it is wrong!!!
If the DNA strand is mutated it can cause genetical and physical defects. Just as an extra chromosome can cause Trisomy 21 which cause Down Syndrome.
Answer:
B
Explanation:
When a Physician writes orders as ad lib, this means that the patient that the order is written for can have as much as they desire of the specific item that the Physician specifies in the order.
It has two layers.
Hope I could help :)
