Скачать или смотреть L-1, जीव समुदाय, अध्याय-11, जीव और समष्टियाँ | Class-12th Biology | कक्षा-12 जीवविज्ञान

00:02:29 – Lecture Flow
00:03:18 – परिचय
00:10:01 – समष्टियाँ (Populations)
00:26:01 – समष्टि गुण (Population Attributes)
00:31:01 – जन्म दर व मृत्यु दर (Birth rate and Death rate)
00:36:35 – लिंग अनुपात (Sex ratio)
00:41:26 – आयु वितरण (Age distribution)

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समष्टियाँ क्या है, समष्टिगुण क्या है,
Populations kya hain,
Population Attributes kya hain,
जन्म दर व मृत्यु दर क्या है,
Birth rate and Death rate kya hain,
लिंग अनुपात क्या है, आयु वितरण क्या है,
Sex ratio kya hain, Age distribution kya hain,
Samashtiya kya hoti hain, samashti kya hain,
Samashti gun kise kahte hain,
Janam dar avn mrityu dar kya hain,
Ling anupat kya hota hain,
Aayu vitaran kya hain,