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Developmental Biology focuses on understanding how organisms grow and develop from a single cell to a complex multicellular being. This field explores the genetic, molecular, and cellular mechanisms underlying developmental processes in various species, including animals and plants. In the context of Evolutionary Developmental Biology, it investigates how these mechanisms have evolved over time, leading to diverse body plans and life cycles across different phyla. By integrating principles from Zoology and Science, this subcategory provides insights into the interplay between genetics, environment, and evolution in shaping developmental trajectories.