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The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

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This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

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New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away..

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Human Biology – Food and Digestion

This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

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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..

Biological Energy
ATP & ADP – Biological Energy

ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..