AP Police Constable practice question
The upward and downward growth of shoots and roots, respectively, in response to the pull of earth or gravity, is called:
From a AP Police Constable Science practice set · Science
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Correct answer: (B) geotropism
Growth of a plant part in response to gravity (shoots growing upward, roots growing downward) is called geotropism (gravitropism).
हिंदी में प्रश्न
पृथ्वी या गुरुत्वाकर्षण के खिंचाव क्रमशः अंकु र और जड़ों की ऊपर की ओर और नीचे की ओर वृद्धि को क्या कहा जाता है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) भू-अनुवर्तन
गुरुत्वाकर्षण के प्रति पौधे के भाग की वृद्धि (तने का ऊपर की ओर तथा जड़ों का नीचे की ओर बढ़ना) भूवर्तिता (जियोट्रॉपिज़्म/गुरुत्ववर्तिता) कहलाती है।
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