16. Give one possible biological explanation for why every cell in a cotton plant does not produce cotton fibers.?
why do spider webs not last for longer times in the environment?
why do spider webs not last for longer times in the environment?
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The genes that control the production of cotton fibers are not active in every cell, just as the genes that produce insulin are not active in every one of your cells, but only in certain cells of the pancreas.
Spider silk, although it has a greater tensil strength than an equivalent thread of steel, is still very flimsy. Wiind, rain, and captured insects themselves can destroy its integrity; the spider will spin a new web every day.
Spider silk, although it has a greater tensil strength than an equivalent thread of steel, is still very flimsy. Wiind, rain, and captured insects themselves can destroy its integrity; the spider will spin a new web every day.