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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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Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..

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DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..

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There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

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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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For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..

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