Question

define the following,. a) phototrophism ,b) hydrotropisum, c) chemotrophysim​

Answer 1

Answer:

phototrophism :

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⠀⠀⠀⠀⠀⠀Phototropism is the growth of an organism in response to a light stimulus. Phototropism is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs.

hydrotropisum :

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⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Hydrotropism is a plant's growth response in which the direction of growth is determined by a stimulus or gradient in water concentration. A common example is a plant root growing in humid air bending toward a higher relative humidity level.

chemotrophysim :

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⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Chemotropism is defined as the growth of organisms navigated by chemical stimulus from outside of the organism. It has been observed in bacteria, plants and fungi. A chemical gradient can influence the growth of the organism in a positive or negative way.

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