Narcotic drugs are analgesic that exert a depressing action on the central nervous system.
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Answer:
what in the world are you learning
Explanation:
Both lipids and carbohydrates are important in animal cells because store energy. The main biological functions of lipids include storing energy, signaling, and acting as structural components of cell membranes. Carbohydrates on the other hand have six major functions in the body; including providing energy and regulation of blood glucose, sparing the use of proteins for energy, breakdown of fatty acids and preventing ketosis.
The fetus does not use its lungs
