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Q. Show the Paleobotanical Evidence?
Paleobotany deals with the study of fossil records of plants and animals. New techniques and approaches to the study of fossil flowering plants provide taxonomic information. Paleobotany uses microfossils such as pollen or macrofossils of leaves, stems and other plant parts as source of data. Recent collection of well preserved angiosperm flowers from Eocene sediments of the southern United States and from kansas confirm the presence of diversified representatives of the present day "Amentiferae line" by middle Eocene time and their adaptation for wind pollination. Flowers and inflorescences with structural features allowing pollination by beetles, flies, beas, and butter flies were still in existence by middle Eocene. An extraordinary data source has been provided by the organic chemical profiles of miocene leaf Specimen s 'of Acer, Celtis, Ouercus, ulmus and zelkova. A high degree of correlation between chemical compounds of the fossils and those of modern species was found. Data provided by Paleobotany allow taxonomists to deal with the facts of the fossil record about angiosperms and their possible progenitors. However, the available data is still too limited for the construction of a valid general phylogenetic scheme.
Q. Stress Testing after Myocardial Infraction? Many post infarction deaths are sudden and occur with in the first 6 months after infarction. Exercise testing from 10 days to we
I need the Answers for the final exam for biology it''s a one hundred question test if you can help i would appreciate it
After Purchasing The following points should be considered for after purchase facilities. Avail of any training the software engineer or vendor may provide, even if it
Renal parenchymal disease is the commonest cause of secondary hypertension. Hypertensive and diabetic nephropathy and chronic glomerulonephritis are the main causes. Eventually, t
what is the necessity of interdependence of a volvox organism in the colonial existence?
Hybridization is the reaction by which pairing of the complementary strands of nucleic acid happens. DNA is usually double-stranded, and when these strands are separated form each
Pocket Psedocyst : lesions present as endodontic origins from canals . It makes lumens resemble granuloma . All lesions lined until root canal or apical foramen communicat
If the results of an experiment turn out differently then you expected, what does that mean? A. The experiment was a failure B. You did not follow scientific method C. You should e
Energy Metabolism In the preceding sections of the unit, you studied how the products of digestion of food, viz: amino acids, sugars and fatty acids are absorbed and transport
Name TWO choices of microscope and stain (if stain should be used) that you could use to view each of the following. For example, to view human cheek cells you could use (1) bright
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