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Effect of Temperature
Certain plants such as the winter rye (Secale cereale) and the biennial strain of henbane (Hyoscyamus Niger) require exposure to low temperature conditions before they start flowering. A phenomenon known as 'vernalization' or 'Yaronization' was noted by the Russian Plant physiologist Gustav Gussner in 1915. Here also embryo or shoot apex seems to be the site of perception and the role of a hormone 'Vernalin" is suggested. Unfortunately like florigen, vernalin has been still elusive. Gibberellin treatment is known to substitute for cold treatment.
Uptake of Ammonia Ammonia (NH 3 ) diffuses freely across biological membranes according to its concentration gradient. However, ammonium (NH + 4 ) ion requires a specific tra
Brasseler Endo Extractor tube Insert H file buccally and lingually and remove silver by friction.If I can't remove use solvent to desolve cement If the tip of silver not appear
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Describe how the International Astronomical Union defines a planet. Also include why Pluto is no longer considered a planet.
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male sex organ
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When underlying coronary artery disease is the cause of heart failure in the coronary revascularization may both improve symptoms and prevent progression. Patients with angina and
Uric acid is the main nitrogenous waste product of uricotelic organisms (birds, insects and reptiles), but is also established in ureotelic organisms from the breakdown of the puri
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