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Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..

Human Nervous System
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The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..

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This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..

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The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

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Gene Action – Operon Hypothesis

This tutorial focuses on the way genes control and determine every aspect of the body. It describes lac operon as an exa..

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Growth and Development of a Human Baby

Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..