Why do hermaphrodite angiosperms develop out breeding devices? Explain any two such devices with the help of examples.

Mention any two output devices.

Out breeding device found is Gloriosa

Diode is a non linear device. Explain it with the help of a graph.

Name any two devices which use permanent magnets.

Explain any four outbreeding devices that prevents autogamy.

Explain any two contrivances or outbreeding devices for pollination.

Describe the out breeding devices that prevent the auto-gamy.

Describe about the out-breeding devices for cross pollination.

Name any two devices in which electromagnets are used.

Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross pollination.