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Cells, Tissues, and Organs: How They Work - Verywell …
WebThe immune system is a network of biological processes that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to parasitic worms, as well as cancer cells and … WebJul 21, 2024 · What is a cell? Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function. Cells are the basic structures of all living organisms. Cells provide structure for the body, take in nutrients from food and carry out important functions. WebFeb 9, 2024 · Each cell serves a specialized purpose in the body. Muscle cells contract and nerve cells transmit impulses. Red blood cells bind to oxygen, while white blood cells fight infection. Tissues When cells of a certain type are grouped together, the resulting structure is called tissue. There is muscle tissue, which is made of strands of muscle cells. eurocarparts car brake light bulbs led