Question

dandelion flowers open the petals in bright light during the daytime but close the petals in dark at night. Why?

Answer 1

Hii dear here is your answer

.But flowers that close up at night, such as tulips, hibiscus, poppies and crocuses, aren't sleepy. ... Scientists know the mechanism behind the phenomenon: In cool air and darkness, the bottom-most petals of certain flowers grow at a faster rate than the upper-most petals, forcing the flowers shut.


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