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Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..

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Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..

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Leaves

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

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New Zealand’s Unique Geographical History

Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..

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Types and Causes of Brain Damage

This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..