CBSE Class 9 > Class 9 Notes > Science New NCERT 2026-27 (New Syllabus) > NCERT Textbook: Reproduction: How Life Continues
NCERT Textbook: Reproduction: How Life Continues
| Download, print and study this document offline |
FAQs on NCERT Textbook: Reproduction: How Life Continues
| 1. What are the main types of reproduction in living organisms? |  |
Ans. The main types of reproduction in living organisms are asexual reproduction and sexual reproduction. Asexual reproduction involves a single parent and results in offspring that are genetically identical to the parent, such as in binary fission in bacteria and budding in hydra. Sexual reproduction, on the other hand, involves the fusion of male and female gametes, leading to genetically diverse offspring, as seen in humans and many other animals and plants.
| 2. What is the significance of reproduction for living organisms? | |
Ans. Reproduction is essential for the survival of species as it ensures the continuation of genetic material across generations. It allows for the propagation of species, contributes to genetic diversity, and helps organisms adapt to changing environments. Through reproduction, living organisms can populate their habitats and maintain their populations, thus playing a vital role in the ecosystem.
| 3. How do plants reproduce sexually? | |
Ans. Plants reproduce sexually through the process of pollination, fertilisation, and seed formation. In flowering plants, the male gametes are produced in the anthers, while the female gametes are found in the ovules within the ovary. Pollination occurs when pollen grains are transferred from the anther to the stigma of a flower. After successful fertilisation, the ovule develops into a seed, and the ovary matures into a fruit, which aids in the dispersal of seeds.
| 4. What are gametes, and how are they formed? | |
Ans. Gametes are specialized reproductive cells that are involved in sexual reproduction. In animals, the male gamete is called sperm, and the female gamete is called an ovum. Gametes are formed through a type of cell division known meiosis, which reduces the chromosome number by half, resulting in haploid cells. This ensures that when fertilisation occurs, the resulting zygote has the correct diploid chromosome number, restoring genetic continuity.
| 5. What is the role of fertilisation in sexual reproduction? | |
Ans. Fertilisation is the process in which a male gamete (sperm) fuses with a female gamete (ovum) to form a zygote. This marks the beginning of the development of a new organism. Fertilisation restores the diploid chromosome number and combines genetic material from both parents, leading to genetic variation in the offspring. It is a crucial step in sexual reproduction that enables the formation of a new individual with a unique set of genetic traits.
About this Document
1.1K Views
4.91/5 Rating
Apr 25, 2026 Last updated
Related Exams
Document Description: NCERT Textbook: Reproduction: How Life Continues for Class 9 2026 is part of Science Class 9 New NCERT 2026-27 (New Syllabus) preparation. The notes and questions for NCERT Textbook: Reproduction: How Life Continues have been prepared according to the Class 9 exam syllabus. Information about NCERT Textbook: Reproduction: How Life Continues covers topics like and NCERT Textbook: Reproduction: How Life Continues Example, for Class 9 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for NCERT Textbook: Reproduction: How Life Continues.
Introduction of NCERT Textbook: Reproduction: How Life Continues in English is available as part of our Science Class 9 New NCERT 2026-27 (New Syllabus) for Class 9 & NCERT Textbook: Reproduction: How Life Continues in Hindi for Science Class 9 New NCERT 2026-27 (New Syllabus) course. Download more important topics related with notes, lectures and mock test series for Class 9 Exam by signing up for free. Class 9: NCERT Textbook: Reproduction: How Life Continues
Description
NCERT Textbook: Reproduction: How Life Continues of Science Class 9 New NCERT 2026 is the updated edition as per the latest syllabus of the 2026-27, PDF available for download.
Information about NCERT Textbook: Reproduction: How Life Continues
In this doc you can find the meaning of NCERT Textbook: Reproduction: How Life Continues defined & explained in the simplest way possible. Besides explaining types of NCERT Textbook: Reproduction: How Life Continues theory, EduRev gives you an ample number of questions to practice NCERT Textbook: Reproduction: How Life Continues tests, examples and also practice Class 9 tests
Related Searches
shortcuts and tricks, video lectures, practice quizzes, Viva Questions, ppt, Objective type Questions, Semester Notes, Summary, Extra Questions, NCERT Textbook: Reproduction: How Life Continues, mock tests for examination, past year papers, NCERT Textbook: Reproduction: How Life Continues, study material, MCQs, Previous Year Questions with Solutions, NCERT Textbook: Reproduction: How Life Continues, Sample Paper, Exam, Important questions, Free, pdf ;