Food Web Several Feeding Pathways Joined Together

Duration: 19 min

This video lesson is available to enrolled students.

Return to /learn/CTET-PAPER-1/environmental-studies/earth-space-environment-resources-1x87o39/ecosystems-food-chains-and-cycles-1vj4rt0/asset-food-web-several-feeding-pathways-joined-together after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. Child Development and Pedagogy: विकास की अवधारणा / Concept of Development, विकास के मनोवैज्ञानिक सिद्धांत / Psychological Theories of Development, व्यक्तिगत भिन्नताएँ, व्यक्तित्व एवं जेंडर / Individual Differences, Personality and Gender, बुद्धि एवं सृजनात्मकता / Intelligence and Creativity, अधिगम एवं इसके सिद्धांत / Learning and Its Theories, बालक कैसे सोचते एवं सीखते हैं / How Children Think and Learn, संवेग, अभिप्रेरणा, मानसिक स्वास्थ्य एवं निर्देशन / Emotion, Motivation, Mental Health and Guidance, समावेशी शिक्षा / Inclusive Education, शिक्षण-अधिगम प्रक्रिया / Teaching-Learning Process, शिक्षण विधियाँ एवं रणनीतियाँ / Teaching Methods and Strategies, आकलन एवं मूल्यांकन / Assessment and Evaluation, पाठ्यचर्या और विद्यालयी गतिविधियाँ / Curriculum and School Activities, पाठ योजना और शिक्षण कौशल / Lesson Planning and Teaching Skills, शिक्षण संसाधन और शैक्षिक प्रौद्योगिकी / Teaching Resources and Educational Technology, शैक्षिक विचारक, उद्देश्य एवं राष्ट्रीय नीतियाँ / Educational Thinkers, Aims and National Policies, कक्षा प्रबंधन और सम्प्रेषण / Classroom Management and Communication, शिक्षक पहचान और व्यावसायिक विकास / Teacher Identity and Professional Development, सामाजिक विज्ञान शिक्षणशास्त्र / Social Science Pedagogy, सामाजिक एवं राजनीतिक जीवन / Social and Political Life, विज्ञान शिक्षण शास्त्र / Science Pedagogy, जीवन कौशल, मूल्य, शांति एवं पर्यावरण शिक्षा / Life Skills, Values, Peace and Environmental Education, संविधान, आयोग, अधिनियम एवं योजनाएँ / Constitution, Commissions, Acts and Schemes in Education
  2. Mathematics: संख्या पद्धति एवं स्थानीय मान / Number System & Place Value, मूलभूत संक्रियाएँ, सरलीकरण एवं पैटर्न / Basic Operations, Simplification & Patterns, गुणनखंड, विभाज्यता, म.स.प. एवं ल.स.प. / Factors, Divisibility, HCF & LCM, भिन्न एवं दशमलव / Fractions & Decimals, वर्ग, घन, घातांक एवं करणी / Squares, Cubes, Exponents & Surds, मापन: लंबाई, भार, धारिता, समय एवं मुद्रा / Measurement: Length, Mass, Capacity, Time & Money, बीजगणित / Algebra, अनुपात, समानुपात, औसत एवं आयु / Ratio, Proportion, Average & Ages, प्रतिशत, लाभ-हानि एवं ब्याज / Percentage, Profit–Loss & Interest, समय-कार्य एवं चाल-दूरी / Time & Work and Speed–Distance, रेखाएँ, कोण, आकृतियाँ एवं निर्देशांक / Lines, Angles, Shapes & Coordinates, त्रिभुज, चतुर्भुज, वृत्त एवं त्रिकोणमिति / Triangles, Quadrilaterals, Circles & Trigonometry, क्षेत्रमिति: परिमाप, क्षेत्रफल एवं आयतन / Mensuration: Perimeter, Area & Volume, आँकड़ा प्रबंधन, सांख्यिकी एवं प्रायिकता / Data Handling, Statistics & Probability, गणित शिक्षणशास्त्र / Mathematics Pedagogy, वर्णमाला एवं संख्या परीक्षण / Alphabet & Number Test, अशाब्दिक तर्क / Non-Verbal Reasoning, पासा एवं घन / Dice & Cubes, गणितीय संक्रियाएँ एवं अंकगणितीय तर्क / Mathematical Operations & Arithmetical Reasoning, क्रम, बैठक व्यवस्था एवं पहेली / Ranking, Seating Arrangement & Puzzles, कैलेंडर एवं घड़ी / Calendar & Clock, वेन आरेख एवं तार्किक निगमन / Venn Diagrams & Logical Deduction
  3. Environmental Studies: परिवार, मित्र और समुदाय / Family, Friends and Community, पौधे / Plants, जंतु / Animals, खेती और पशुपालन / Farming and Animal Husbandry, भोजन और पोषण / Food and Nutrition, शरीर और स्वास्थ्य / Body and Health, जल / Water, आवास / Shelter, यात्रा, परिवहन और संचार / Travel, Transport and Communication, मानचित्र, दिशाएँ और भारत / Maps, Directions and India, हम क्या बनाते और करते हैं / Things We Make and Do, पृथ्वी, आकाश और आपदाएँ / Earth, Sky and Disasters, पर्यावरण, पारिस्थितिकी और वन्यजीव / Environment, Ecology and Wildlife, प्राकृतिक संसाधन, प्रदूषण और जलवायु परिवर्तन / Natural Resources, Pollution and Climate Change, पर्यावरण अध्ययन का शिक्षणशास्त्र / Pedagogy of Environmental Studies, भौतिक भूगोल / Physical Geography, संसाधन एवं विकास / Resources and Development, बल, दाब, कार्य एवं ऊर्जा / Force, Pressure, Work and Energy, पर्यावरण एवं पारिस्थितिकी / Environment and Ecology, विज्ञान एवं प्रौद्योगिकी / Science & Technology, ऊष्मा एवं ध्वनि / Heat and Sound, प्रकाश / Light, ब्रह्मांड एवं प्राकृतिक परिघटनाएँ / Universe and Natural Phenomena, रासायनिक अभिक्रियाएँ, अम्ल, क्षार एवं लवण / Chemical Reactions, Acids, Bases and Salts, प्राकृतिक वनस्पति, वन्य जीवन एवं विश्व के प्रदेश / Natural Vegetation, Wildlife and World Regions, पर्यावरण एवं जलवायु समसामयिकी / Environment & Climate Affairs
  4. Language I/II — Hindi: भाषा, लिपि और वर्ण-विचार, संधि, शब्द-स्रोत और शब्द-रचना, समास, शब्द-भेद: विकारी और अविकारी, लिंग, वचन, कारक, काल और वाच्य, वाक्य-विचार और शुद्ध लेखन, शब्द-भंडार, रस, छंद, अलंकार और शब्द-शक्ति, हिंदी साहित्य, अपठित बोध, हिंदी शिक्षणशास्त्र
  5. Language I/II — English: Sounds, Spelling and Word Formation, Parts of Speech, Nouns and Pronouns, Articles, Determiners and Adjectives, Verbs and Modals, Tenses and Subject–Verb Agreement, Adverbs, Prepositions and Conjunctions, Sentence Structure, Voice and Narration, Vocabulary, Sentence Correction and Writing Skills, Poetry and English Literature, Reading Comprehension, Pedagogy of English Language
  6. Language I/II — Sanskrit: वर्णविचारः एवं संज्ञाप्रकरणम्, सन्धिप्रकरणम्, शब्दरूपाणि, धातुरूपाणि, कारकाणि एवं विभक्तयः, उपसर्गाः एवं अव्ययानि, प्रत्ययप्रकरणम्, समासप्रकरणम्, वाच्यप्रकरणम्, संख्याज्ञानम्, शब्दज्ञानम् एवं अनुवादः, अपठितावबोधनम्, संस्कृतसाहित्यम् एवं काव्यशास्त्रम्, संस्कृतशिक्षणशास्त्रम्
  7. Language I/II — Urdu: رسم الخط، املا اور تلفظ, ذخیرۂ الفاظ, قواعد, محاورے اور ضرب الامثال, شعر و سخن, اردو ادب کی تاریخ, تفہیمِ عبارت, اردو کی تدریس
  8. Language I/II — Bengali: ভাষা, ধ্বনি ও বর্ণ, সন্ধি ও বানান, শব্দের উৎস ও গঠন, সমাস, পদ পরিচয়, কারক ও বিভক্তি, ক্রিয়া ও কাল, বাক্যতত্ত্ব, শব্দার্থ ও বাগর্থ, পাঠ অনুধাবন ও সাহিত্য, নির্মিতি ও পত্রলিখন, বাংলা শিক্ষণবিদ্যা
  9. अतिरिक्त अभ्यास / Extra Practice (beyond syllabus): कंप्यूटर हार्डवेयर एवं परिधीय उपकरण / Computer Hardware and Peripherals, अंतरराष्ट्रीय संबंध एवं संगठन / International Relations & Organisations, भारतीय अर्थव्यवस्था: आँकड़े एवं समसामयिकी / Indian Economy: Data & Current Affairs
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This bilingual (English and Hindi) educational video explains ecological food chains, food webs, trophic positions, and habitats. It begins by defining the grazing food chain as starting with living producers such as green plants or algae, using the example Grass → Deer → Tiger. It then contrasts this with the detritus food chain, which begins with dead organic matter and involves decomposers and detritivores, illustrated by Dead leaves → Earthworm → Earthworm-eating bird. The lesson shows how grazing and detritus pathways are connected, then introduces the food web as several feeding pathways joined together, using a diagram of grass, mouse, grasshopper, frog, snake, and eagle. It explains that one organism can have different feeding positions depending on the pathway followed; for example, an omnivorous bird may be a primary consumer when eating seeds and a secondary consumer when eating plant-eating insects. The video concludes by defining habitat as the place where an organism lives, with examples such as a pond for fish.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The opening slide is titled 'Grazing Food Chain: Beginning with Living Producers' and presents the definition in English and Hindi. A green highlight box frames 'living producers, such as green plants or algae,' emphasizing the starting point. The example line shows 'Grass → Deer → Tiger' with a Hindi translation below, and Important Points include 'Begins with living producer material' and 'Herbivores are the first consumers.' A handwritten green note labeled 'Food Chain' with an arrow appears beside the example, reinforcing that this sequence represents a food chain.

  2. 2:00 – 5:00 02:00-05:00

    The lesson continues on the grazing food chain slide, with green boxes around 'living producers' and 'such as green plants or algae,' and an oval highlighting the bullet 'Herbivores are the first consumers.' The video then switches to a slide titled 'Detritus Food Chain: Beginning with Dead Organic Matter.' Green highlight boxes frame 'dead organic matter' and 'decomposers,' and a second box outlines the Hindi sentence about decomposers and detritivores. The example line shows 'Dead leaves → Earthworm → Earthworm-eating bird' with a Hindi translation, and an additional green box appears around 'dead organic matter' in the first Important Point bullet.

  3. 5:00 – 10:00 05:00-10:00

    A slide titled 'Grazing and Detritus Pathways Are Connected' displays a two-column table comparing the Grazing pathway (Living producers, Herbivores) and Detritus pathway (Dead organic matter, Decomposers and detritivores). Green hand-drawn boxes appear around table entries with checkmarks beside row labels. An annotation circles 'Grass → Deer' and adds a top-right sketch with an arrow labeled 'Dead,' showing how grazing organisms eventually enter the detritus pathway. The final frame switches to a slide titled 'Food Web: Several Feeding Pathways Joined Together,' showing a diagram of grass, mouse, grasshopper, frog, snake, and eagle linked by arrows.

  4. 10:00 – 15:00 10:00-15:00

    The food web slide shows grass, mouse, grasshopper, frog, snake, and eagle linked by red arrows with circled organisms. Red underlines mark phrases such as 'one food source,' 'consumers,' and 'network of feeding relationships.' The Important Points list, in English and Hindi, notes that a consumer may eat several kinds of food and arrows point from food to the receiving organism. The video then switches to 'One Organism Can Have Different Feeding Positions,' with red handwritten labels 'Bird' and 'E. worm.' The instructor explains that an omnivorous bird may eat seeds in one pathway and plant-eating insects in another, underlining that a bird eating seeds is a primary consumer and highlighting that omnivores can occupy more than one trophic level.

  5. 15:00 – 19:22 15:00-19:22

    The lesson transitions to a slide titled 'Habitat: The Place Where an Organism Lives.' Red underlines mark phrases such as 'organism lives' and 'A pond can be a habitat for fish.' Red hand-drawn ellipses circle the first two bullets under Important Points. The final frame returns to a slide titled 'Food Web: Several Feeding Pathways Joined Together,' showing a diagram of grass, mouse, grasshopper, snake, and eagle linked by arrows, with the phrase 'eaten by different consumers' visible. This closing return reinforces that food webs represent multiple connected feeding pathways.

The video builds a coherent ecological sequence: grazing food chains start with living producers (Grass → Deer → Tiger), detritus food chains start with dead organic matter and involve decomposers/detritivores (Dead leaves → Earthworm → Earthworm-eating bird), and the two pathways are connected because grazing organisms eventually die and enter detritus. A food web is then presented as several feeding pathways joined together, using a multi-organism diagram (grass, mouse, grasshopper, frog, snake, eagle) with arrows pointing from food to consumer. A key conceptual point is that trophic position depends on the pathway: an omnivorous bird can be a primary consumer when eating seeds and a secondary consumer when eating plant-eating insects, so omnivores can occupy more than one trophic level. The lesson ends by defining habitat as the place where an organism lives (e.g., a pond for fish) and returns to the food web diagram, tying together feeding relationships and ecological context. Bilingual English-Hindi text, green highlight boxes, red underlines, and hand-drawn annotations are used throughout to emphasize definitions, examples, and important points.

Loading lesson…