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A response exhibited by a certain plant tendril is illustrated below.

(a) (i) Name the type of response
(ii) Explain how the response named in (a)(i) above occurs
(b) What is the importance of tactic responses to microscopic plants?

Answer Text:
(a) (i) Thigmotropism
(ii)Contact with support causes migration of auxins to the other side, causing faster growth on the side away from contact, causing tendrils curl around support.
(b) Escape injurious stimuli.