B3 - Rhythms and Plant defences 0.0 / 5 ? BiologyAdaptations of organisms to their environmentGCSEEdexcel Created by: ldupre03Created on: 24-04-17 19:46 What are most plant and animal responses controlled by? rhythms 1 of 6 Define Photoperiodicity (photoperiodism) the response of a plant that changes as day length changes 2 of 6 what is the scientific name for a pattern of behaviour that changes over a 24hour period Circadian rhythm 3 of 6 what are circadian rhythms controlled by? an internal biological clock 4 of 6 what does 'Circadian' come from? (the latin word for...) Circa = about, and dies = a day 5 of 6 over how many hours does a circadian rhythm show the same pattern? 24 hours 6 of 6
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