Answer:
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Hello,
I just learned this yesterday here's what i know...
The process that will be most responsible for replacing lost nitrogen in an ecosystem would be : Fixation
In fixation, the ecosystem biosynthesize various substance from plants, animal, etc and forming a new nitrogen
hope this helps
Answer:
The orchids derive nutrients from the association at very young stages of its life cycle while the fungi obtain water and organic matter
Explanation:
As stated in this question, fungi species belonging to the phylum Basidiomycota form mycorrhizal associations with a flowering plant called orchids. This relationship is a mutualistic one because both participants benefit from the relationship.
In this association, the young orchid plant relies on the mycorrhizal fungi's metabolism to get nutrients needed for its development in form of carbohydrates while the fungi in return gets water (from the roots of the plant) and organic matter.
Exchange of nutrients occurs in the digestive system. Exchange of oxygen occurs in lungs
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.
