Read the passage and answer the following.
Movement of individual parts of plants is possible when they are subjected to external stimuli. This type of Response is called tropism. Sometimes the direction of stimuli determines direction of movement. Sometimes may not this type of response is called nastic movement.
2. If plants are respond to light which type of response we observed?

Read the passage and answer the following. Movement of individual parts of plants is possible when they are subjected to external stimuli. This type of Response is called tropism. Sometimes the direction of stimuli determines direction of movement. Sometimes may not this type of response is called nastic movement. 1. What is meant by tropism?

Read the passage and answer the following. Movement of individual parts of plants is possible when they are subjected to external stimuli. This type of Response is called tropism. Sometimes the direction of stimuli determines direction of movement. Sometimes may not this type of response is called nastic movement. 3. What is meant by hydrostropism?

Read the passage and answer the following. Movement of individual parts of plants is possible when they are subjected to external stimuli. This type of Response is called tropism. Sometimes the direction of stimuli determines direction of movement. Sometimes may not this type of response is called nastic movement. 4. What does nastic movement indicates?

Which type of response we observed in Mimosa plant?

Observe the following a,b statements a) Nastic movements are the movements by plants shown by stimuli. b) Trophic movements can determine the direction of stimuli

Read the passage and answer the following questions. Dodder (Cuscuta) is a leafless, twining, parasitic plant belongs to morning glory family (Convolvulaceae). The genus contain about 170 twining species that are widely disturbed throughout the temperate and tropical regions of the world. The dodder contains less amount of chlorophyll and instead absorbs food through haustoria. The dodder's seed germinates, forming an anchoring root. By reading above passage which type of nutrition observed in Dodder plant?

Ozone layer acts as one of the most important life support system. The major cause of ozone layer destruction is believed to be the release of chlorofluorocarbon compounds. UV radiation causes the chlorofluouocarbons to dissociate : CF_(2) Cl overset(hv)(rarr) Cl* +CF_(2) CI A highly reactive chlorine atomis responsible for the decomposition of ozone. Cl* + O_(3) (g) rarr ClO* + O_(2) (g) ClO* + O(g) rarr Cl* + O_(2) (g) Free radicals of chlorine decompose ozone molecules in a chain reaction. The depletion of ozone layer leading to ozone hole has, however, been mainly observed in the stratosphere over Antarctica. Special type of cloud called polar stratospheric colouds are formed over Antarctica.These clouds (contain solid HNO_(3).3H_(2)O ) play an important role in ozone depletion. ClO* + NO_(2) rarr ClONO_(2) ClONO_(2) + H_(2) O rarr HOCl + HNO_(3) ClONO_(2) + HCl rarr Cl_(2) + HNO_(3) HOCl overset(hv)(rarr) HO* + Cl* The reactive chlorine atoms thus formed are rendered to deplete ozone layer. Peeling of ozone umbrella, which protects us from UV rays is caused by: