Zenit-RM NERO

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The human body is incredibly complex and intricate, consisting of an estimated 37 trillion cells that work together to sustain life. Each cell is a tiny factory, producing proteins, lipids, carbohydrates, and nucleic acids necessary for proper bodily function. The central nervous system, comprising the brain and spinal cord, acts as the control center, sending and receiving signals through electrical impulses and chemical messengers known as neurotransmitters. Meanwhile, the circulatory system pumps life-giving oxygen and nutrients throughout the body via blood vessels, while waste products are efficiently removed. Additionally, the immune system protects against pathogens by producing antibodies that recognize and destroy foreign invaders.