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Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

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Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..

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The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

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Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

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Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..

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