control and coordination — Science STD 10 — Question
Gujarat BoardEnglish MediumSTD 10Sciencecontrol and coordination3 Marks
Question
Give scientific reason : Unlike animals, the plants do not show immediate response.
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Answer
All organisms show response to stimuli.
However, the animals possess nervous system and sense organs, which are absent in plants.
Animals use the nervous system as well as endocrine system for control and coordination of all their activities, while he plants possess only hormones to coordinate their activities.
The hormones diffuse from cell to cell quite slowly in plants while most animals have blood for rapid transport of hormones.
Because of all these reasons, the plants do not show immediate response.
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