1. What is reproduction? What are its type.
- The biological process of producing own kind of new organisms by a living being is called reproduction. Its types are:
a. Asexual Reproduction
b. Sexual reproduction
2. Define asexual and sexual reproduction.
- The reproduction in which new organisms are formed from the parts of a parental body instead of formation of gametes is known as asexual reproduction. It occurs in organisms like amoeba, hydra etc.
- The reproduction in which new organisms are formed due to the fusion of male and female gametes is known as sexual reproduction. It occurs in organisms like human beings, cat etc.
3. What are the advantages of asexual reproduction?
- The advantages of asexual reproduction are:
a. It is easy, fast and economic.
b. The offspring are genetically similar to the parents.
c. Only one organism is involved.
4. Define fission with types.
- The process of formation of two or more organisms by dividing a fully developed organism is called fission. Its types are:
a. Binary fission-- Amoeba, bacteria etc.
b. Multiple fission-- Plasmodium, Chlamydomonas etc.
5. Define budding, fragmentation and sporulation.
- The type of asexual reproduction due to the formation of buds is known as budding. For example hydra, yeast etc.
- The type of reproduction in which the body of an organisms breaks down into two or more parts and then each parts develop into new organisms is known as fragmentation. For eg. spirogyra
- The kind of asexual reproduction that takes place due to formation of spores is known as sporulation. For eg. Fern, mucor etc.
6. Define vegetative reproduction and give examples of plant reproducing by this method.
- The type of asexual reproduction which takes place by the parts of plant like stem, root, leaves etc is known as vegetative reproduction. For example:
a. From roots- Sweet potato,Dahlia
b. From leaves- Bryophyllum, Begonia
c. From shoot- Potato, Rose plant.
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