CBSE ADDA

7 th Reproduction in plants solved Questions,MCQ,For  Summative   assessments 1.What is meant by reproduction? Ans: The process of producing new individuals of same kind of the same species is called reproduction. 2. Why reproduction is a essential life process? Ans: Reproduction is essential for continuation of the species from generation to generation. 3. What are the different modes of unisexual reproduction? Ans: modes of reproduction evolve only one parent is called unisexual reproduction. (a) Fission: The mode of reproduction in which unicellular organism split into two equal halves and produce new ones is called binary fission. For example amoeba and bacteria (b) Fragmentation: The mode of reproduction in which body of plant breaks up into smaller fragments and each fragment grows into a new individual is known as Fragmentation e.g. Spirogyra , algae (c) Budding: The mode of reproduction in which small buds when develop get separated and mature into new

Download CTET answer key for November 2012 exam conducted on 18.11.2012. The answers are provided by our website users. If you have a different answer, please mail us at onlineteachers@yahoo.co.in or post as comment below this news item. You can discuss any question or any query related to CTET November 2012 exam in this section. We appreciate your comments and discussions. These will definitely help us to serve you better. Download CTET Answer Key Here By http://onlineteachers.co.in/ 

Answer these question 1. Question:  Explain how animals dwelling in the forest help it grow and regenerate. Ans: A nimals in the forest help it grow and regenerate in many ways like:  Animals help in dispersal of sees. Micro organism  supply   nutrients  for growth.   Many seedlings growing in a decaying heap on animal droppings. 2. Explain how forests prevent floods. Ans: Forest absorb rainwater and allows it to seep naturally.its leaves and branches prevent rain to hit the ground directly. 3. What are decomposers? Name any two of them. What do they do in the forest? Ans: The micro-organisms which convert the dead plants and animals to humus are known as decomposers like Fungi and bacteria. They  convert dead leaves and dead animals  into humus 4. Explain the role of forest in maintaining the balance between oxygen and carbon dioxide in the atmosphere. Ans: During respiration plants and animals take in oxygen  and release carbon dioxde. During  photosynthes

1.Fill in the blanks: a. Decomposers convert dead plants and animals into ______. Compost b.Tall trees which look like roof over other plants in the forest is called_________. Canopy c.The various components of the forests are ___________ on another. Dependent d. Forests are the -------------- for the forest dwelling communities. Home e.------------------------- help forest to grow and regenerate. Animals f.----------------------- forms the uppermost layer in the forest. Canopy 2. State whether True  or  False: a.The different horizontal layers in the forest are known as under storey’s. True b.Forest help in causing floods. False c.Forest are called green lungs. True d.The type of animals remains same from forest to forest. False e.Deforestation will endanger our life and environment. True f.Forest is a dynamic living entity. True 3.Name the following: a.The branchy part of a tree above the stem. Crown b.Two for