आजीविकी और विकासात्मक जीव विज्ञान
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पर्यावरण के साथ जीवों के बीच संबंधों का अध्ययन किस क्षेत्र में किया जाता है?

  • अनुवंशिकी
  • पारिस्थितिकी (correct)
  • उत्क्रांति
  • आजीवविज्ञान
  • जिस प्रक्रिया में जीनों का पुनरुत्पादन और कार्यान्वयन शामिल होता है, उसे क्या कहते हैं?

  • सेल विभाजन
  • मेटाबॉलिज्म
  • प्रस्तुति
  • जीन अभिव्यक्ति (correct)
  • प्राकृतिक चयन और आनुवंशिक प्रवाह की प्रक्रिया किस अध्ययन के अंतर्गत आती है?

  • आजीवविज्ञान
  • उत्क्रांति (correct)
  • परिस्थितिकी
  • कोशिका विज्ञान
  • किस अंग में सेल संकेतन और संचार का अध्ययन महत्वपूर्ण है?

    <p>कोशिका</p> Signup and view all the answers

    जीवों द्वारा स्थिरता बनाए रखने की प्रक्रिया का अध्ययन किस क्षेत्र में होता है?

    <p>फिजियोलॉजी</p> Signup and view all the answers

    DNA, RNA और प्रोटीन के बीच संबंध को किस सिद्धांत में वर्णित किया गया है?

    <p>केंद्रीय सिद्धांत</p> Signup and view all the answers

    जीवों की विविधता को आकार देने वाले प्रक्रियाओं का अध्ययन किसमें किया जाता है?

    <p>आजीवविज्ञान</p> Signup and view all the answers

    संबंधित जीनों के बीच संबंधों के अध्ययन के लिए कौन सा अनुशासन महत्वपूर्ण है?

    <p>आनुवंशिकी</p> Signup and view all the answers

    Study Notes

    Biology

    • Biology is the study of life, encompassing all living organisms and their interactions.
    • It's a broad field, often subdivided into specializations like ecology, genetics, cell biology, and physiology.
    • Key concepts include evolution, homeostasis, reproduction, metabolism, and adaptation.

    Ecology

    • Ecology focuses on the relationships between organisms and their environment.
    • It examines populations, communities, ecosystems, and the biosphere.
    • Key concepts include energy flow, nutrient cycling, biodiversity, and the impact of human activities.
    • Different levels of ecological organization exist, ranging from individual organisms to global processes.
    • Studying the interactions between species (e.g., predator-prey, competition) is central to ecological analysis.

    Evolutionary Biology

    • Evolutionary biology explores the processes that have shaped the diversity of life on Earth.
    • It examines the mechanisms of evolution, including natural selection, mutation, genetic drift, and gene flow.
    • The study of phylogeny (evolutionary relationships between organisms) is an important aspect.
    • Key concepts include speciation, adaptation, and the history of life.
    • Evidence for evolution comes from multiple sources (e.g., fossils, comparative anatomy, molecular biology).

    Genetics

    • Genetics studies heredity and variation in organisms.
    • It examines the structure, function, and inheritance of genes.
    • The central dogma of molecular biology (DNA -> RNA -> protein) is fundamental.
    • Key concepts include DNA replication, transcription, translation, gene expression, and Mendelian inheritance.
    • Modern genetics incorporates techniques like PCR, DNA sequencing, and genetic engineering.

    Cell Biology

    • Cell biology investigates the structure and function of cells.
    • Cells are the basic units of life, exhibiting complex organization and processes.
    • Key concepts include cell membranes, organelles (e.g., mitochondria, chloroplasts), and cell division.
    • The study of cell signaling, cellular communication, and cell differentiation is vital.
    • Techniques used in cell biology include microscopy and cell culture.

    Physiology

    • Physiology explores the functions of living organisms and their parts.
    • It examines how organisms maintain homeostasis.
    • Physiological processes depend on many factors, including genetics, environmental conditions, and evolutionary history.
    • Different levels of organization, from cells to organ systems, are studied.
    • Examples include the study of respiration, digestion, circulation, and nervous systems.
    • Physiology often connects with other biological disciplines, like ecology, to understand organismal responses to their environments.

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    Description

    यह क्विज जीव विज्ञान के विभिन्न क्षेत्रों का अध्ययन करता है, जिसमें पारिस्थितिकी और विकासात्मक जीव विज्ञान शामिल हैं। इसमें जीवन के विविध पहलुओं की खोज की जाती है, जैसे कि जीवों के बीच संबंध और विकास के प्रक्रियाएँ। यह ज्ञान उन महत्वपूर्ण सिद्धांतों पर केंद्रित है जो पृथ्वी पर जीवन को आकार देते हैं।

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