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Q. Phylogenetic systems of classification?
As already pointed out 'earlier that in Phylogenetic system, the plants are classified according to their evolutionary relationships. It is very difficult to claim that a phylogenetic system is perfect on the basis of evolutionary affinities due to incomplete fossils records and in such a situation the plants are classified on the basis of available data. The systems of classification by Engler and Prantl (1887-1915), Hutchinson (1926, 1934, 1969 and 1973) and by Takhtajan (1954, 1964, 1973, 1980) are Phylogenetic systems. We shall discuss these systems one by one in details.
Natural Gums These are derived from various plant as well as microbial sources and are divided into the following four basic categories: 1. Seaweed gums: Agar, Alginate,
What are the forces that facilitate to make water to flow within the xylem from the roots to the leaves? Water enters the roots because of the root pressure and a water column
Explain the Community ecology of disease? Ebola, hantavirus, bubonic plague, Lyme disease, West Nile virus, rinderpest, and canine distemper virus are all instances of diseases
Q. Defense mechanisms used in Diabetes Mellitus? Defense mechanisms are the strategies to cope with the real situation and to maintain self-image. Healthy persons normally use
write six characteristics of bacteria
Describe the various types of RNA? Types of RNA : There are three different types of RNA, all formed by transcription from DNA: (1) Messenger RNA (mRNA) is a single unc
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Lack of Osseointegration (Indicated as Mobility) Loss of osseointegration can occur during the early stages of treatment because of the inability of the woven bone to interfac
Q. Is the embryonic development in birds indirect or direct? The embryonic development is direct there is no larval stage. Q. What are the predominating chemical compounds
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