Darwin carried out extensive

He didn’t stop there. Assisted by his son Francis, Darwin carried out extensive further experiments on the movements of plants. One of his key insights was that “all the more important great classes of movements are due to the modification of a kind of movement common to all parts of all plants from their earliest youth.” The nascent movements of adult plants could be seen right from their seedling stages, from sensitivity to light and other external stimuli, to their “sleep” behaviors, which revealed a kind of circadian rhythm. สล็อต เว็บตรง