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What is a goiter? What is endemic goiter? How is this problem socially solved?
Goiter is the abnormal enlargement of the thyroid gland. The goiter appears as a tumor in the anterior neck and it might be visible or sometimes not visible but palpable. Goiter can happen in hypothyroidism or in hyperthyroidism.
Endemic goiter is the goiter caused by deficient iodine ingestion (deficiency of iodine in the diet). The endemic character of the disease is defined because the iodine content of the diet is often a social or cultural condition affecting many people of some geographical regions. The hypothyroidism caused by deficient iodine ingestion is more frequent in regions far from the sea coast (as sea food is rich in iodine).
Why do few plants adapted to a dry environment open their stomata only at night? Throughout the day in dry habitats the guard cells become the stomata close and flaccid; concur
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reproduction
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