Negatively geotropic roots are found in
(a) Cactus
(b) sundari
(c) Lotus
(d) Paddy
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Answer: the answer is cycus
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Among the above given options, the plant that shows negative geotropism is option b) Sundari.
Geotropism is the phenomenon of movement of root towards the Earth.
The ones which shows movement of the root towards the Earth or downwards are called positive geotropism.
The ones showing movement of root upwards or above the Earth are called negative geotropism.
Sundari trees are mangrove trees , showing negative geotropism because of anaerobic mangrove mud.
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