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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.
Explain holding method of pasteurization In the holding method of pasteurization (62 o C for 30 minutes) or the high-temperature short-time (HTST), 71 o C for 15 minutes method
PHOSPHORUS It is present in vegetables, grains (oat metal, wheat meal), milk, eggs, cheese, meat, fish, etc. It helps in - (a) Like calcium it is a constituent of bones.
Why do most of plants present opposite phyllotaxis? The Phyllotaxis is the way that leaves are arranged on shoots. Most of plants have opposite phyllotaxis that (alternating in
Q. What is an evolutionary tree? Is there a precise evolutionary tree known by science that explains the emergence and origin of every type of living being? Evolutionary tree i
Define the disease - Marcus Gunn Pupil (RAPD) Relative Afferent Pupillary Defect occurs in a pupil of an eye that is blirld from optic nerve disease. When light is shifted to t
What are the main types of waste? The waste can be classified into main types, each of them carrying its own dissimilar environmental problem: organic waste, non recyclable was
Release of Microspores Up to the tetrad stage, there is no cellulosic wall around the microspores. As you will come to know in the next unit, a unique feature of the pollen i
Classification
You are working with plants that have either hairy (dominant) or 'bald' (recessive) flowers. Hairy flowers have little hairs on them that make the flowers look fuzzy, bald flowers
T h e i l e r io s i s It is also referred as tropical theileriosis and results in fever, enlargement of superficial lymphnodes, anaemia and jaundice. E tiolo
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