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Q. What is the evolutionary importance of the emergence of seeds in the plant kingdom?
The evolutionary significance of the seed is related to the plant capability of distant colonization and to the protection of the embryo. Embryo-containing seeds can be carried by wind, water and germinate and animals in different environments. This fact contributes to the exploration for the diversity of plant species and of a variety of ecological niches.
Seeds in addition protect the plant embryo against external aggressions and they also provide germination under more satisfactory conditions (inside the seed). These characteristics contribute to the evolutionary accomplishment of the phanerogam.
a) List the a variety of modes of heterotrophic nutrition in plants. b) Define any two modes giving one example of each.
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Q. What are the main interspecific ecological interactions? The major harmonious interspecific ecological interactions are: protocooperation, commensalism and mutualism. The ma
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Define the Properties of Fibre? The structural make up of fibre influences its properties which in turn affects the physiologic and metabolic roles. This is well-depicted in th
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