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defense mechanisms
To protect the mind/self/ego from anxiety, social sanctions, or situations that can't be coped with currently.
They differ in how they are used. As far as natural antibiotics, they are defense mechanisms much like needles on a cactus. While the other produces you mention are metabolic wastes and not made just for the purpose of defense.
The purpose of poetry, according to Philip Sidney as stated in his Defense for Poesie, is for poetry to teach and to delight. It is to teach a virtue to the reader while also entertaining them. It imitates life in an original way.
It is to protect and safeguard an individual's rights.to protect its citizens from each other and to provide for the common defense
Hunt, sport, defense, collecting.
The defense of his country.
Hunting, defense, collecting, shooting,
They protect your body emotionally from hardships.
The primary purpose of the army is to provide a defense against foreign invasion.
It maintains the homeostasis or balance in the body. Feedback mechanisms stops an excessive secretion or excretion of something.
To advise the secretary of defense