Answer: Genetic engineering has many applications to medicine that include the manufacturing of drugs, creation of model animals that mimic human conditions and gene therapy.
Explanation:
Lungs appear collapsed in the fetus because they are filled with amniotic fluid and they have never been inflated with air yet.
Development is where the growth of the embryo occurs. After fertilization and implantation, the growth of the embryo occurs once it gets to the uterus. This is the part where the procedure where the embryo turns into a living being over time - depending on the animal that has the said embryo.
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