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

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Bryophytes

Bryophytes are a plant group characterized by being nonvascular. They include the mosses, the liverworts, and the hornwo..

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Lights’ Effect on Growth

This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..

Population Regulation in an Ecosystem
Population Regulation in an Ecosystem

With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..

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Vascular Plants: Ferns and Relatives

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

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Hormone Production

Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..