Answer 23 and 24 with explanation.
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23. tropism ( that's not trophism , please correct it)
explanation....
plants show two types of movements, one is that which takes place in a particular direction and another is that which doesn't depend upon direction, for example, chui - mui plant, when someone touches it , it shrinks which doesn't necessarily have only a particular direction.
the former one is called tropism and the latter is called nastism which is direction independent. Example for tropism is .... when light falls on a plant only from a single side then the whole plant body bend towards light. This phenomenon is directional i.e. tropism.
explanation....
plants show two types of movements, one is that which takes place in a particular direction and another is that which doesn't depend upon direction, for example, chui - mui plant, when someone touches it , it shrinks which doesn't necessarily have only a particular direction.
the former one is called tropism and the latter is called nastism which is direction independent. Example for tropism is .... when light falls on a plant only from a single side then the whole plant body bend towards light. This phenomenon is directional i.e. tropism.
kannu17:
sorry.. by mistake i forget to answer 24..
answer to 24 is ... 2143
i.e. (b)
because when action potential is generated it causes auricular systole with is followed by ventricular systole which coincides with auricular diastole. Thereafter there occurs ventricular diastole.
this word is which... which is followed by ventricular systole
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