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Ecology/Inpotaance of Ecology

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Physiological effects of plant growth regulator

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 *AUXIN * .  AUXIN (from Greek 'AUXIN':to grow) was frist isolated  from human  urine  The term 'is applied to the indole -3-acetic Acid (IAA) ,and to other natural and synthetic compound having certain growth regulating properties they are generally product by the growing apices of the stems and roots from where they migrate to the region of their action. AUXIN like IAA. and indole butyric acid (IBA) have been isolated from plants. NAA(naphthalene acetic acid) and 2,4-D(2,-4dicholorophenoxyacetic)are synthetic AUXIN all these AUXINS have been used extensive in agriculture and horticulture practice  They help to initiate rooting in stem  cuttings, an application widely used  for plants  provocation. Auxins promoted flowering e.g.in pineapples they help to prevent fruit and leaf drop at early stage but promoted the abscission of older mature leave and fruits.  In most higher plant ,the growing apical bud inhibits the growth of the leteral...
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PROTOZOA

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 PROTOZOA.                                     (1st animal) NAMING 》》》 PROTOS : (FRIST) , ZOON :(ANIMAL)                      ORIGIN 》》pre - Cambrian                                      also known as frist animals.                      ``````````````````                            * General characters * 1 A cellular (not dived into cell ) . 2 the term PROTOZOA was called by goldfuss . 3 they simplist and most primitive  ANIMAL having level of oxg . 4 body consist of protoplast mass . 5 they are microscopic, primitive and eukaryotic.   6  habitats; aquatic/ freeliving/parasitic commensal . 7  B...
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