SEBA Class 10 Science Important Chapter 8 How do organisms reproduce?

SEBA Class 10 Science Important Chapter 8 How do organisms reproduce? Solutions English Medium As Per SEBA New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 10 Science Additional Solutions in English and select need one. SEBA Class 10 General Science Additional Notes English Medium Download PDF. SEBA Important Solutions for Class 10 Science.

SEBA Class 10 Science Important Chapter 8 How do organisms reproduce?

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 10 General Science Additional Question Answer are part of All Subject Solutions. Here we have given SEBA Class 10 Science Important Question Answer English Medium for All Chapters, You can practice these here.

How do organisms reproduce?

Chapter: 8

IMPORTANT QUESTION ANSWER

Q.1. What is reproduction? What is its importance? 

Ans: Reproduction is the production of offspring. There are two main forms: sexual and asexual reproduction. In sexual reproduction, an organism combines the genetic information from each of its parents and is genetically unique. In asexual reproduction, one parent copies itself to form a genetically identical offspring.

The Importance of Reproduction:

1. Reproduction is a necessary step in the process of creating new species through genetic recombination.

2. Reproduction has the potential to save a wide range of species from extinction.

3. Through the process of genetic transmission, children inherit their parents’ genes.

4. This leads to the creation of new species in the long run.

5. The evolution of different species and their ability to adapt to a wide range of environments can be attributed to reproduction.

6. Reproduction is critical in maintaining a healthy balance among the various biotic elements that make up an ecosystem.

7. Without the ability to reproduce, life as we know it would cease to exist.

Q.2. What are the two main methods of reproduction? 

Ans: There are two main methods are:

(i) asexual reproduction. and

(ii) sexual reproduction. 

Q.3. What is asexual reproduction? Give example . 

Ans: Asexual reproduction is a type of reproduction that does not entail the union of sex cells or gametes. Unlike in sexual reproduction wherein male and female gametes unite to reproduce offspring, in asexual reproduction, this union is not necessary.

Examples: Binary fission in Amoeba, budding in Hydra, fragmentation in spirogyra etc. 

Q.4. What is sexual reproduction? Give examples. 

Ans: “Sexual reproduction is a type of reproduction that involves the production of an offspring by the fusion of male and female gametes.”

Examples: The humans, fish, frogs etc are reproduce by the method of sexual reproduction. 

Q.5. Differentiate between sexual reproduction and asexual reproduction. 

Ans: (i) In asexual reproduction only one parent is needed whereas two parents are needed in sexual reproduction. 

(ii) No sex cells are involved in asexual reproduction but sex cells take part in sexual reproduction. 

Q.6. Name the types of asexual reproduction. 

Ans: There are different types of asexual reproduction:

1. Binary Fission.

2. Budding.

3. Fragmentation.

4. Vegetative Propagation. and

5. Sporogenesis.

Q.7. Write a difference between fission and fragmentation. 

Ans: Difference between fission and fragmentation are:

Fission	Fragmentation
In the fragmentation process, nuclear division does not takes part.	In the fission process, nuclear division takes part.
Two or more identical daughter cells are formed.	The products of fragmentation are generally unequal and dissimilar.
Nuclear division occurs.	No nuclear division occurs.
In the fragmentation process, parent organism forms daughter organism	In the fission process, parent cell divides and forms two daughter cells.

Q.8. Which of the following organisms reproduce by sexual method and which by asexual method? 

Amoeba, Cats, Humans, Hydra, Birds. 

Ans: Sexual method: Cats, Humans, Birds. 

Asexual method: Ameoba, Hydra. 

Q.9. What is meant by regeneration? Name two animals which can regenerate fully from their cut body parts. 

Ans: Regeneration, in biology, the process by which some organisms replace or restore lost or amputated body parts.

The two animals which can regenerate fully from the cut body parts are: Hydra and Planaria can regenerate fully from their lost body parts.

Q.10. What is Zygote? Name the two types of gametes. 

Ans: A zygote, also known as a fertilized ovum or fertilized egg, is the union of a sperm cell and an egg cell. The zygote begins as a single cell but divides rapidly in the days following fertilization. The zygote’s single cell contains all of the 46 necessary chromosomes, getting 23 from the sperm and 23 from the egg.

The two types of gametes are: male gametes and female gametes.