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    class 10 science chapter 8 question answer in hindi

    Mohammed

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    NCERT Solutions for Class 10 Science Chapter 8 in PDF form 2022

    NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce? intext questions and Exercises answers PDF Hindi and English.

    Tiwari Academy  /  NCERT Solutions  /  NCERT Solutions for Class 10  /  NCERT Solutions for Class 10 Science  /  NCERT Solutions for Class 10 Science Chapter 8

    NCERT Solutions for Class 10 Science Chapter 8

    NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce? intext question answers of Page 128 or Page 133 or Page 140 or Exercises in English Medium updated for new academic session 2022-2023. All the contents in English and Hindi Medium on this website are free to use without any login or password.

    NCERT Solutions for Class 10 Science Chapter 8

    10th Science Chapter 8 Answers in English Medium

    10th Science Page 128 Question – Answers

    10th Science Page 133 Question – Answers

    10th Science Page 140 Question – Answers

    10th Science Chapter 8 Exercises Answers

    10th Science Chapter 8 Answers in Hindi Medium

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    10th Science Chapter 8 Answers in PDF Format

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    10th Science Page 140 Answers in PDF

    10th Science Chapter 8 Exercises in PDF

    10th Science Chapter 8 Study Material in English

    10th Science Chapter 8 Study Material in Hindi

    10th Science Notes on Chapter 8

    Class 10 Science Solution Main Page

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    Hindi Medium NCERT Solutions of 10th Science chapter 8 Hindi Medium Solution are given to view online or free download in PDF format. UP Board Students are also using NCERT Books in the session 2022-2023, so download UP Board Solutions for Class 10 Science Chapter 8 from here in Hindi or English Medium. Extra important questions related to Chapter 8 of 10th Science are also given with previous years CBSE Board questions and answers. CBSE Solutions Apps 2022-23 based on latest NCERT Books 2022-2023 download for offline use.

    Class: 10 Science (English and Hindi Medium)

    Chapter 8: How do Organisms Reproduce?

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    10th Science Chapter 8 Answers in English & Hindi Medium

    NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce? Intext question as well as chapter end exercises question answers are given below updated for academic year 2022-2023. Ask your doubts through Discussion Forum and answer the questions asked by the other users.

    Class 10 Science Chapter 8 Solutions All Pages

    Class 10 Science Chapter 8 Important Questions

    Class 10 Science Chapter 8 Board Questions

    Class 10 Science Chapter 8 MCQ

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    Class 10 Science Chapter 8 Extra Question Answers

    What is the importance of DNA copying in reproduction?

    What are sexually transmitted diseases? Name an STD which damages the immune system of human body.

    Why is variation beneficial to the species but not necessarily for the individual?

    What are the three categories of contraception methods? Write briefly about each.

    “Multicellular organisms cannot divide cell by cell.” List two reasons to justify this statement.

    Describe menstrual cycle.

    Define the process of fragmentation in some organisms. Which category of organisms are involved in this process? Give one example.

    What is the role of seminal vesicle and the prostate gland?

    What is pollination? List the modes of pollination and define each of them?

    10th Science Chapter 8 Questions for Practice

    @[email protected]#=img=# Question 1:

    (a) Name the following:

    (i) Thread like non-reproductive structures present in Rhizopus.

    (ii) ‘Blob’ that develops at tips of the non-reproductive threads in Rhizopus.

    (b)Explain the structure and function of the structures released from the ‘blobs’ in Rhizopus.

    Answer 1: (a) (i) Hyphae (ii) Sporangia

    (b) On maturity sporangia ruptures and release spores. Each spore contains a nucleus and cytoplasm enclosed in a thick wall for protection.

    Function: Spores disperse far and wide. Each spore grows into new Rhizopus when come in contact of moist surface and other suitable conditions.

    Question 2:

    Differentiate between pollen gains and ovule?

    Answer 2:

    Pollen grain produces male germs-cell (male gamete) in the plants. The ovule contains a female gamete (female germ cell or egg).

    @[email protected]#=img=#

    Questions from Board Papers

    Question 1:

    Name the plant that reproduces through leaves. List two advantages of this way of reproduction.

    Answer 1: Bryophyllum Advantages:

    (i) Many buds are produced in the notches along the margin of a single leaf. Each leaf-bud of Bryophyllum produces a plant.

    (ii) The plants from the buds are exactly similar to the parent plant.

    (iii) A large number of young plants are produced by a single leaf of a plant that helps in survival of the species.

    @[email protected]#=img=# Question 2:

    Give functions of the following organs of the human male reproductive system.

    (a) Scrotum (b) Testes Answer 2:

    (a) Testes are placed in scrotum which are located outside the abdominal cavity. It keeps the temperature lower than the normal body temperature that is required for the formation of sperm.

    (b) Testes produce sperm and male hormone testosterone.

    स्रोत : www.tiwariacademy.com

    NCERT Solutions Class 10 Science Chapter 8 जीव जनन कैसे करते हैं?

    Here you can get free NCERT Solutions for Class 10 Science, in Hindi of Chapter 8 How do Organisms Reproduce? All NCERT Book Solutions are given here exercise wise for How do Organisms Reproduce? NCERT Solutions are helpful in the preparation of several school level, graduate and undergraduate level competitive exams. Practicing questions from NCERT Science Book, its Solutions in Hindi for Class 10 ... Read more

    NCERT Solutions Class 10 Science Chapter 8 जीव जनन कैसे करते हैं?

    October 7, 2018 by ncertsolutions

    Here you can get free NCERT Solutions for Class 10 Science, in Hindi of Chapter 8 How do Organisms Reproduce? All NCERT Book Solutions are given here exercise wise for How do Organisms Reproduce? NCERT Solutions are helpful in the preparation of several school level, graduate and undergraduate level competitive exams. Practicing questions from NCERT Science Book, its Solutions in Hindi for Class 10 Chapter 8 How do Organisms Reproduce? is proven to enhance your subject skills.

    यहाँ हम आप के लिए लाये है हिंदी में एनसीईआरटी समाधान कक्षा 10 विज्ञान पुस्तक के अध्याय 8 जीव जनन कैसे करते हैं? का पूर्ण समाधान | कक्षा 10 के लिए ये एनसीईआरटी समाधान हिंदी माध्यम में पढ़ रहे छात्रों के लिए बहुत उपयोगी हैं। एनसीईआरटी समाधान कक्षा 10 विज्ञान अध्याय 8 जीव जनन कैसे करते हैं? नीचे दिए हुए है।

    कक्षा: 10th Class अध्याय: Chapter 8

    नाम: जीव जनन कैसे करते हैं?

    भाषा: Hindi पुस्तक: विज्ञान

    NCERT Solutions Class 10 Science Chapter 8 – जीव जनन कैसे करते हैं?

    एनसीईआरटी समाधान कक्षा 10 विज्ञान अध्याय 8 जीव जनन कैसे करते हैं? नीचे दिए हुए है ।

    NCERT Class 10 Solutions in Hindi Chapter 8 – How do Organisms Reproduce? are given below.

    NCERT Solutions for Class 10 विज्ञान Chapter 8 जीव जनन कैसे करते है (Hindi Medium)

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    Class 10 Science Chapter 8 NCERT Solutions in Hindi

    Get step by step solutions in Hindi for the questions given in class 10 Science textbook from the latest NCERT as per board exam guidelines. Here on this page we have covered following topics from NCERT Book for Class 10 Science Chapter 8

    Topic Covered under Class 10 Science Chapter 8 NCERT Solutions in Hindi

    क्या जीव पूर्णत: अपनी प्रतिकृति का सृजन करते है?

    एकल जीवों में प्रजनन की विधि

    लैंगिक जनन

    Exercise Covered under Science Book Class 10 Science Chapter 8 NCERT Solutions in Hindi

    Here on this page we have covered following exercises from NCERT Science Book for Class 10 Science Chapter 8 How do Organisms Reproduce?

    प्रश्न All Questions Solved

    अभ्यास 11 Questions with Solutions

    We also suggest you to practice all the solved examples given in the NCERT book to clear your concepts on How do Organisms Reproduce? You can buy NCERT Books for Class 10 Science online for doorstep delivery.

    NCERT Solutions in Hindi Class 10 Chapter Wise

    If you want NCERT solutions in Hindi of any topic other than Chapter 8 How do Organisms Reproduce? check it from here. Science Book by NCERT has all chapters that are in your Class 10 syllabus.

    Chapter 1  Chapter 2

    Chapter 3  Chapter 4

    Chapter 5  Chapter 6

    Chapter 7  Chapter 8

    Chapter 9  Chapter 10

    Chapter 11  Chapter 12

    Chapter 13  Chapter 14

    Chapter 15  Chapter 16

    NCERT Solutions in Hindi Class 10 All Subjects

    All NCERT Solutions for Subjects other than Science are provided below:

    English  Hindi Science  Maths Social Science

    If you want NCERT solutions of any class other than Class 10, check it from here.

    Class 12 Class 11 Class 10 Class 09 Class 08 Class 07 Class 06 Class 05

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    NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce? in Hindi

    Free PDF Download of NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce? Hindi Medium solved by our expert teachers from latest edition books and as per NCERT CBSE guidelines. Register for our free webinar class with the best tutor in India.

    NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce? in Hindi

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    NCERT Solutions for Class 10 Science Chapter 8 How do Organisms Reproduce? in Hindi PDF Download

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    Access NCERT Solutions for Class 10 Science Chapter 8 - जीव जनन कैसे करते हैं

    अभ्यास

    1. अलैंगिक जनन मुकुलन द्वारा होता है।

    (a) अमीबा (b) यीस्ट (C) प्लैज्मोडियम (d) लेस्मानिया उत्तर: (b) यीस्ट।

    2. निम्न में से कौन मानव में मादा जनन तंत्र का भाग नहीं है?

    (a) अंडाशय (b) गर्भाशय (C) शुक्रवाहिका (d) डिंबवाहिनी

    उत्तर: (c) शुक्रवाहिका।

    3. परागकोश में होते हैं-

    (a) बाह्यदल (b) अंडाशय (C) अंडप (d) पराग कण उत्तर: (d) पराग कण।

    4. अलैंगिक जनन की अपेक्षा लैंगिक जनन के क्या लाभ हैं?

    उत्तर: अलैंगिक जनन में प्राप्त संतति, जनक के लगभग समरूप होते हैं, क्योंकि इनमें एक ही जीव के डी०एन०ए० से प्रतिकृति प्राप्त होती है परंतु लैंगिक जनन में दो या दो से अधिक जीव भाग लेते हैं। अत: संयोजन अनोखा होता है तथा भिन्न जीवों से प्राप्त डी०एन०ए० अत्यधिक विभिन्नताओं को बढ़ावा देता है, जो विकास के लिए आवश्यक है।लैंगिक जनन में नए संयोजन के अवसर उत्पन्न होते हैं, जिससे नई स्पीशीज़ एवं जाति की उत्पत्ति होती है।

    5. मानव में वृषण के क्या कार्य हैं?

    उत्तर: मानव में वृषण के कार्य निम्न हैं-

    शुक्राणु का निर्माण करना।

    टेस्टोस्टेरोन हॉर्मोन का स्राव करना।

    6. ऋतुस्राव क्यों होता है?

    उत्तर: निषेचन नहीं होने की स्थिति में अंडाशय की अंत:भित्ति की मांसल एवं स्पंजी परत जैसी संरचना की आवश्यकता नहीं रहती, क्योंकि यह अंड के निषेचन होने की अवस्था में उसके पोषण के लिए आवश्यक होता है। अतः यह परत धीरे-धीरे टूटकर योनि मार्ग से रुधिर एवं म्यूकस के रूप में निष्कासित होती है। इस चक्र में लगभग एक माह का समय लगता है, इसे ऋतुस्राव या रजोधर्म कहते हैं।

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