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This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..

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Apart from vitamins, the human body also requires high energy sources such as carbohydrates and fats. If you want an ove..

Early Mammals on Earth
Early Mammals on Earth

The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..

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Adaptive Radiation

The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..

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Birth of a Human Baby

Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..