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Class 10 Science Chapter 7 Practice Question Answers - How Do Organisms Reproduce

Fill in the Blanks 


1. The _________ is also called womb.

2. The _________ is primary reproductive organ in male.

3. The _________ is connecting structure which helps in the transfer of substance to and from the foetus body.

4. The process of laying eggs in a large number is called _________.

5. _________ is the primary reproductive organ in females.

6. Testes produce _________.

7. The cells involved in sexual reproduction are called _________.

8. In animals like fish and frog _________ fertilization take place.

9. The human zygote gets implanted in the _________.

10. IVF stands for _________.

Answer:
1. Uterus  

2. Testis  

3. Placenta  

4. Super ovulation

5. Ovary  

6. Testosterone  

7. Germ cells  

8. External

9. Uterus  

10. In vitro fertilization

Choose True and False Statements


1. Internal fertilization takes place outside the female's body. (False)

2. Birds and snakes are oviparous animals. (True)

3. A tadpole is the young one of a frog. (True)

4. Animals like Amoeba multiply by budding. (False)

5. The fusion of male and female sex cells is called fertilization. (True)

Match the Columns


Column-A             Column-B

1. Tapeworm          (a) Uterus

2. Vasectomy        (b) STD

3. Copper-T           (c) IUCD

4. Implantation      (d) Vas deferens

5. AIDS                (e) Hermaphrodite

Class 10 Science Chapter 7 Practice Question Answers - How Do Organisms Reproduce

Answer:

1. Tapeworm: (e) Hermaphrodite

2. Vasectomy: (d) Vas deferens        

3. Copper-T: (c) IUCD

4. Implantation: (a) Uterus      

5. AIDS: (b) STD             

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FAQs on Class 10 Science Chapter 7 Practice Question Answers - How Do Organisms Reproduce

1. How do organisms reproduce?
Ans. Organisms reproduce through the process of reproduction, which involves the production of offspring from parent organisms. There are two main types of reproduction - sexual and asexual. Sexual reproduction involves the fusion of male and female gametes, resulting in genetic variation among the offspring. Asexual reproduction, on the other hand, does not involve the fusion of gametes and leads to the production of genetically identical offspring.
2. What is the difference between sexual and asexual reproduction?
Ans. Sexual reproduction involves the fusion of male and female gametes, resulting in offspring with genetic variation. This variation is beneficial as it helps organisms adapt to changing environments and survive. Asexual reproduction, on the other hand, does not involve the fusion of gametes and leads to the production of genetically identical offspring. This lack of genetic variation can be disadvantageous in changing environments, but asexual reproduction is advantageous in stable environments as it allows for rapid reproduction.
3. What are the advantages of sexual reproduction?
Ans. Sexual reproduction offers several advantages. Firstly, it leads to genetic variation among offspring, which enhances the adaptability and survival of a species. Genetic variation allows for the development of new traits and the ability to better withstand changes in the environment. Secondly, sexual reproduction promotes the elimination of harmful genetic mutations through the process of natural selection. This helps maintain the overall health and fitness of a species.
4. What are the advantages of asexual reproduction?
Ans. Asexual reproduction offers certain advantages. Firstly, it allows for rapid reproduction since there is no need to find a mate or invest energy in producing gametes. This can be beneficial in stable environments where there is no significant change. Secondly, asexual reproduction guarantees the production of genetically identical offspring, ensuring the preservation of favorable traits and characteristics. This can be advantageous in environments where the current traits are well-suited for survival.
5. Can organisms switch between sexual and asexual reproduction?
Ans. Some organisms have the ability to switch between sexual and asexual reproduction depending on the environmental conditions. This phenomenon is known as facultative parthenogenesis. For example, certain reptiles can reproduce asexually when there is a lack of suitable mates, but can also reproduce sexually when mates are available. However, it is important to note that not all organisms have the capability to switch between these two modes of reproduction.
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