BioWaleSir: One Stop Solution for Biology

CBSE class 12th Biology Unit- Genetics and Evolution previous 5 year questions all in one CBSE class 12th biology past 5 years paper of unit - genetics and evolution

NCERT CLASS 10 TH   CHAPTER : CONTROL  AND COORDINATION  REVIEW AND  NOTES  CONTROL - power of restrain and regulation by which something can be started, stopped down, expedited or stopped COORDINATION - orderly or harmonious working of different but interrelated parts, to perform one or more activities very smoothly Coordination in plants- PLANTS MOVEMENTS- Mainly divide into two types 1.       Tropic movement- directional movement- direction of movement is determined by the direction of stimulus a.         Photo-tropism                                                   i.       Positive – stem                                                 ii.       Negative- root b.        Geo-tropism                                                   i.       Positive- root                                                 ii.       Negative- stem c.         Chemo-tropism - movement of pollen tube and fungal hyphae d.        Hydro-tropism - root of seedlin