Organisms and Populations
CBSE · Class 12 · Biology
Flashcards for Organisms and Populations — CBSE Class 12 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.
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Get startedWhat is ecology concerned with at the broadest level?
Answer
Ecology studies the relationships of living organisms with the abiotic environment and with other species. It is concerned with four levels of biological organisation: organisms, populations, communit…
पारिस्थितिकी सबसे व्यापक स्तर पर किससे संबंधित है?
Answer
पारिस्थितिकी (Ecology) में जीवों के अजैविक पर्यावरण तथा अन्य जीव-जंतुओं के साथ सम्बन्धों का अध्ययन किया जाता है। यह जैविक संगठन के चार स्तरों से सम्बन्धित है: जीव, आबादी, समुदाय और जीवमण्डल।…
What is the difference between a 'how-type' question and a 'why-type' question in biology?
Answer
A how-type question asks about the mechanism of a process, while a why-type question asks about its significance. For example, how a bird sings is about the voice box mechanism, while why it sings rel…
जीवविज्ञान में 'कैसे प्रकार' वाले प्रश्न और 'क्यों प्रकार' वाले प्रश्न में क्या अंतर है?
Answer
कैसे प्रकार का प्रश्न किसी प्रक्रिया के तंत्र के बारे में पूछता है, जबकि क्यों प्रकार का प्रश्न उसके महत्व के बारे में पूछता है। उदाहरण के लिए, एक पक्षी कैसे गाता है, यह स्वरयंत्र तंत्र के बारे में है…
What is a population in ecology?
Answer
A population is a group of individuals of the same species living in a defined geographical area, sharing or competing for similar resources, and potentially interbreeding. Even a group formed by asex…
पारिस्थितिकी में जनसंख्या क्या है?
Answer
जनसंख्या (population) एक ही जाति के व्यक्तियों का एक समूह होता है जो एक निश्चित भौगोलिक क्षेत्र में एक साथ रहते हैं, समान संसाधनों को साझा करते हैं या उनके लिए प्रतिस्पर्धा करते हैं और संभवतः आपस में …
Why is population ecology important?
Answer
Population ecology is important because it links ecology to population genetics and evolution. Natural selection operates at the population level, not at the level of a single individual.
जनसंख्या पारिस्थितिकी क्यों महत्वपूर्ण है?
Answer
जनसंख्या जीवविज्ञान महत्वपूर्ण है क्योंकि यह जीवविज्ञान को जनसंख्या आनुवंशिकी और विकास से जोड़ता है। प्राकृतिक चयन जनसंख्या स्तर पर संचालित होता है, न कि किसी एक व्यक्ति के स्तर पर।…
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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