The function of the respiratory system is to exchange two gases: oxygen and carbon dioxide.
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Answer:
A hypothesis is usually written in the form of an if/then statement, according to the University of California. This statement gives a possibility (if) and explains what may happen because of the possibility (then). The statement could also include "may."
Phospholipids are the lipids are the main constituents of the cellular membrane. The phospholipids; sphingolipids, and phosphatidylcholine are the two foremost lipids of the membranes. Phospholipids help in maintaining the integrity and fluidity of the membranes.