Life 10 c

1. A plant's growth response to touch is called

(a. thigmotropism). B. photoperiodism. c . phototropism . d. gravitropism.

5. How does day length affect the flowering of day-neutral plants?

Day lenth has no effect

3. What environmental condition must be mt for a short-day plant to flower?

Days are short nights are long

2. The leaves of the Mimosa pudica plant close rapidly when they are touched and will gradually reopen sometime later. What is this an example of and how does it work?

It is called Example of nastic movement - touch causes the plant cells to loose tugor pressure when the pressure is restored the leaves will open

4. A plant's response to the amount of light itre ceives is controlled by pigments called

a. phototropisms. c. phytochromes. b. chlorophylls d. photoperiodisms.