Biology, asked by srijana4605, 11 months ago

the growth of pollen tube towards ovule is known as A) thigmotropism B) chemotropism C) hydrotropism D) geotropism​

Answers

Answered by murugan1421975
1

Answer:

The growth of pollen tubes towards ovules is due to chemotropism. Chemo-tropism is growth of organisms such as bacteria and plants, navigated by chemical stimuli from outside of the organism or organism's part.

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Answered by pshobhaa
0

Answer:

b) chemotropism

Explanation:

The tip of the pollen tube is directed towards the ovule by a chemical (studies show that calcium plays an important role as the chemical stimulus), and so this is an example of positive chemotropism.  

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