Difine hydrotopism positive negetive with example
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hydrogen atoms of the year and a half day tomorrow and then you
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Hydrotropism is a form of tropism characterized by the growth or movement response of a cell or an organism to moisture or water. The response may be positive or negative. A positive hydrotropism is one in which the organism tends to grow towards moisture whereas a negative hydrotropism is when the organism grows away from it. An example of positive hydrotropism is the growth of plant roots towards higher relative humidity level. The plant is able to sense this at the root cap and then sending signals to the elongating part of the root. Nevertheless, gravitropism often has more influence on root growth than hydrotropism.1
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