Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days


Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number


Mon to Sat - 11 AM to 8 PM

(a) Why it is said that sexual reproduction promotes diversity of characters in the offsprings?

(b) What are the barrier methods of birth control?

Asked by Topperlearning User 21st November 2013, 2:56 AM
Answered by Expert

(a) It is because sexual reproduction results from the fusion of two gametes coming from two different and sexually distinct individuals. This leads to variation which is necessary for evolution.  

(b) In barrier methods, physical devices such as condom, diaphragm and cervical caps are used. They prevent the entry of sperms in female genital tract during copulation. 

Answered by Expert 21st November 2013, 4:56 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp