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Class 10 CHAPTER HOW DO ORGANISMS REPRODUCE SOLVED QUESTIONS
Click here and Visit to Download File 10th CHAPTER HEREDITY AND EVOLUTION-SOLVED QUESTION SOLVED ) Click here and Visit to Download File
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 IX S.St. Model Paper[CBSE 2014] -6 (Solved) S.A. II
IX S.St. Model Paper[CBSE 2014] -7(Solved) S.A. II Visit to Download File Social Science Term - II Class 9 Solved Questions _Economics _Geography _History_ Political Science X History CH-4 FOREST SOCIETY AND COLONIALISM IX History CH-5 NOMADISM AS A WAY OF LIFE IX History CHAPTER-6 PEASANTS AND FARMERS IX Hist. CH-7 HIS.& SPORT_ THE STORY OF CRICKET IX Hist. CH-8 CLOTHING A SOCIAL HIST. CONCEPTS IX Economics CH-3 POVERTY AS A CHALLENGE IX Economics CHAPTER-4 FOOD SECURITY IN INDIA IX Political Science CH-4 ELECTORAL POLITICS IX Political Science CH-5 WORKING OF INSTITUTIONS Click here and Visit to Download File  HOTS: (High Order Thinking Skill) Questions with Answers:
Q.1. Why is variation beneficial to the species but not necessary for the individual? Ans- Variation is beneficial to the species as it enables a species for its survival. A favourable variation makes an organism to live better in a changed environment and an unfavourable variation will not. So it is not necessarily true that a variation is beneficial to the individual always. Q.2. What is the advantage of reproduction through spores in the case of Rhizopus? Ans: The spores are covered by thick walls that protect them until they come into contact with another moist surface and can begin to grow. Q.3. The simple animals such as planaria can be cut into number of pieces and each piece grows into a complex organism. What is this process known as? Ans: Regeneration Q.4) Name the unicellular organism which caused the disease known as kala-azar. Ans : Leishmania Q.5) Which process taking place in the nucleus of a cell leads to variation in the offspring during reproduction? Ans : DNA copying Q.6. What causes joining up of stock and scion in grafting technique of vegetative propagation in plants? Define the terms stock and scion. Name one positive trait each of the plant contributing scion and stock should have. Ans : The stock and scion unite due to cambial cavity. Stock is the portion on which grafting is done and it provides the roots. Scion is the portion of the plant which is grafted on the other plant and it contributes the stem. The plant contributing scion should have large sized fruits and the plant contributing stock should have deep root system. Q.7 . Which type of layering is done in Jasmine? Ans : Air Layering (Gootee) Q.8 . Where does fertilization takes place in human female? Ans : Oviduct (fallopian tube) Q.9 . Why is it said that “sexual reproduction promotes diversity of characters in the offsprings”? Ans : It is because sexual reproduction results from the fusion of two gametes coming from two different and sexually distinct individuals. This leads to variation, is necessary for evolution. Q.10. What happens if the fallopian tubes are partially blocked and the ovulated eggs are prevented from reaching the uterus? Ans : Fertilization may take place but the zygote may develop in the tube instead of uterus. Q.11 . Name the causative organism of syphilis and gonorrhoea. Ans : Treponema pallidum and Nisseria gonorrhoeae. Q.12 . Why are variation possible in progeny of sexually reproductive individuals? Ans-Variations are possible in progeny of sexually reproductive individuals because copy of DNA in newly formed cell is not identical to copy DNA of original cell. 10th NCERT Solution Intex and Exercise Questions 10th CBSE NCERT Question(1 mark) Solved 10th CBSE NCERT Question( 2 marks) Solved 10th CBSE NCERT Question( 3 marks) Solved 10th CBSE NCERT Test Paper (Solved) Click to download these files  CBSE Social Science Sample Papers 2013-14
View Xth SAMPLE PAPER SOCIAL SCIENCE 2014-1 Download File Xth SAMPLE PAPER S. St. 2014-1[Solution] Download File Xth SAMPLE PAPER SOCIAL SC. SOLVED 2014-2 Download File Xth SAMPLE PAPER SOCIAL SC. SOLVED 2014-3 Download File Xth SAMPLE PAPER SOCIAL SC. SOLVED 2014-4 Download File 10th social science CBSE Board Model paper Download File  S.St. Solved Sample Papers [CBSE 2010] -1
Download File S.St. Solved Sample Papers [CBSE 2011] -2 Download File S.St. Solved Sample Papers [CBSE 2012] -3 Download File S.St. Solved Sample Papers [CBSE 2013] -4 Download File s.st._Practice model _sample_papers_cbse_2014_ 15. Download File  Central Board of Secondary Education (CBSE)
Centre Details For Private Candidates for Class 10th & 12th Main Exam 2014 Click Here To View Centre Details Courtesy : CBSE CBSE VII Hots Science Questions Chapter : Transportation , Respiration , Excretion , Reproduction and Forest a natural wealth    There will be two Summative Assessments, one in September and the other in Feb./March , and four Formative Assessments, two in first term and two in second term. The weightage of the first Summative Assessment will be 30 marks and that of the second 30 marks. Each of the four Formative Assessments will be of 10 marks. Thus, the final result will be out of 100 marks to be converted into grades. The Question Paper in each of the Summative Assessment will be of 90 marks and of three hours duration. The syllabus has been divided into two parts, one for the first term and the other for the second term. Click below the link for details[ http://www.davnewpanvel.com/] 
 The Central Board of Secondary Education (CBSE) recently announced that it will make available for download the question papers for Summative Assessment Examination two (SA II) from March first week onwards. The SA II is mainly the final examination for the students of class IX and X who have opted for the CBSE’s Comprehensive and Continuous Evaluation (CCE) scheme.
The students who have opted for the regular board exams can rest assured of won’t be affected by the same at all as the date sheet for SA II and the board exams is totally different. The board is putting major part of its processes online to make everything secured and expedited. The online portal of the board is called CBSE Integrated Test Management System (CBSE-ITMS) which banks more than one lakh questions and offers two unique sets of question papers for each subject. The students will be able to download the SA II from March 3rd, to be conducted from March 10th. The schools will be provided with the marking scheme by the board from March 17th. Further, the CBSE-ITMS makes sure that each school across the country has a distinguished question paper and as it is an online process, the risk on paper getting leaked is minimized greatly. With the question papers ready at hand, the schools will be having three options: 1. any one of the two sets can be picked by the school, where it can administer the SA II; 2. the schools can create a new question paper by mixing questions from the two sets; 3. a school may also prepare its own question paper as per the guidelines given by the board. If the schools opt to create their own question paper, they need to email a copy of the same to the CBSE Board within a week of the exam date for verification and quality control check. The board has also given leverage to the schools to create their owndate sheet for SA II, as a result it is important to deliver the question paper online. However, according to a circular issued by the Board, the schools are supported in generating question papers online in certain chief subjects only like English Literature and Language, English Communicative, Hindi Course A & B, Science,Mathematics, Communicative Sanskrit and Social Science. Credit: Learn next 
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