Biology · Ecology and Environment
'पारिस्थितिकी' (Ecology) शब्द का प्रतिपादन किसने किया था?
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- 2अर्न्स्ट हैकेल✓
- 3चार्ल्स डार्विन
- 4पॉल सैमुएलसन
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अर्न्स्ट हैकेल
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