How life is organized from "summary" of Biology by Neil A. Campbell
Life on Earth is a marvel of organization, with living organisms exhibiting a remarkable level of complexity and order. From the microscopic cells that make up all living things to the intricate ecosystems that support diverse forms of life, organization is a fundamental feature of biology. At the most basic level, life is organized into cells, the smallest units of living organisms. These cells are highly structured, with specialized organelles carrying out specific functions to sustain life. Within cells, molecules are organized into intricate biochemical pathways that regulate essential processes such as metabolism, growth, and reproduction. As organisms grow and develop, they exhibit a hierarchical level of organization, with cells forming tissues, tissues forming organs, and organs working together in organ systems to carry out complex functions. This hierarchical organization allows for specialization and division of labor, ensur...
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