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Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

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This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

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Psychiatry & Mental Disorders

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Mammalian Ancestors

Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..

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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..

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Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..