What is autogamy? Explain tbe device that the plants have developed to prevent this.

Water plants usually have well developed

New Banana plants develop from

Heterothallism is a device to prevent

Explain mutation breeding with note on plants developed through mutation breeding.

What is corrosion? Name a method to prevent it.

Parasitic animals have well-developed

Explain different strategies developed by animals to escape in time.

Explain the cause, symptoms, prevention and treatment of Syphilis.

List and explain in brief three methods of contraception. OR List three techniques that have been developed to prevent pregnancy. Which one of these techniques are not meant for males? How does the use of these techniques have a direct impact on the health and prosperity of a family?