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When Charles and Francis Darwin First Documented Phototropism, Why Was

Question 29

Multiple Choice

When Charles and Francis Darwin first documented phototropism, why was it important that they germinated the grass seeds in the dark before beginning the experiment?


A) so the young shoots would be soft enough to bend
B) so the young shoots would grow slowly
C) so the young shoots would grow quickly
D) so the young shoots would grow straight

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