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Which of these is a response to an internal stimulus? A. A sunflower turns to face the rising sun. B. A cucumber tendril wraps around a wire. C. A pine tree knocked sideways in a landslide grows upward
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Which of these is a response to an internal stimulus?

A. A sunflower turns to face the rising sun.
B. A cucumber tendril wraps around a wire.
C. A pine tree knocked sideways in a landslide grows upward in a bend.
D. Guard cells of a tomato plant leaf close when there is little water in the roots.

User Andrew Sumner
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Answer:A a sunflower turns to face the rising sun.

Step-by-step explanation:

User Sir Ksilem
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