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This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..
It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..
Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..