The ductus arteriousus is a blood vessel that connects the pulmonary artery to the descending aorta. Otherwise known as the ductus Botalli, this structure pumps blood into the fetus' non-functioning lungs from the right ventricle. This blood vessel will close at birth and becomes the ligamentum arteriousum.
What is cell specialization?
Answer: cell specialization is an adaptation to do a particular job in a cell
Answer:
A.
Substance X has the highest temperature because its particles have more kinetic energy.
Answer:
The answer is False, genes are turned on and off according to when they are needed.
Explanation:
so false!
