Class X Chapter 8 – How do Organisms Reproduce Science
Answer : Living organisms reproduce for the continuation of a particular species . It helps in providing stability to the population of species by producing a new individual that resembles the parents . This is the reason why cats give birth to only cats or dogs give birth to only dogs . Therefore , reproduction provides stability to populations of dogs or cats or any other species . Question 11 : What could be the reasons for adopting contraceptive methods ? Answer : Contraceptive methods are mainly adopted because of the following reasons : ( i ) To prevent unwanted pregnancies . ( ii ) To control population rise or birth rate . ( iii ) To prevent the transfer of sexually transmitted diseases .
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