What is the difference between movement of flower in sunflower plant and closing of the leaves in the Mimosa pudica.?

Observe the given picture.

a) Identify this plant. What type of special movement is shown by this plant?

b) What are the other movements seen in this plant?

What is nastic movement?

Give an example for the movement plant part which is very quick and can be observed easily.

The petals of moon flower open up in morning and closes in the evening. This is called photonasty.

What does a Mimosa pudica plant do in response to touch? What is the phenomenon known as?

i) What happens to the dandelion flower

a) during the daytime?

b) at night?

ii) What is the phenomenon known as?

Which flowering plant shows photonasty just opposite to that of Dandelion?

What is the other name for thigmonasty?

Name the movement seen in Pneumatophores of Avicennia.

There are 3 plants A, B and C. The flowers of A open their petals in bright light during the day but close them when it gets dark at night. On the other hand, the flowers of plant B open their petals at night but close them during the day when there is bright light. The leaves of plant C fold up and droop when touched when fingers or any other solid object.

a) Name the phenomenon shown by the flowers of plant A and B.

b) Name one flower each which behaves like the flowers of plant A and B.

c) Name the phenomenon exhibited by the leaves of plant C.

d) Name a plant whose leaves behave like those of plant C.’