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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.
Water Logging Over saturation of soil with water is called water logging. If for any reason, the water-table rises close to the ground surface it is bad for plants and soil fer
larval forms of sponges
Q. Symptoms and Complications of atherosclerosis? Symptoms Excessive weight, hypertension, high levels of cholesterol and triglycerides. Complications Myocardia
Carbohydrate characteristic chemical features include: Select one: a. the potential to form multiple hydrogen bonds. b. the existence of one or more asymmetric centers.
SOIL GENESIS Soil a product of evolution, is constantly changing as the landscape changes. It is a product of the interaction of five factors: parent material, climate, organis
NEURITE S - The processes of neurons are called neurites. These are of two types: dendrites or dendrons and an axon or axis cylinder or neuraxon. (a) Dendrites (Den
How nutritional status influences the age? The nutritional status influences the age-related rate of functional decline in many organ systems in the body. Nutrition is also an
Q. Show Appearance of food product? Appearance can be judged by the eye. Appearance factors include such things as size, colour, uniformity, absence of any defect, shape, whole
Determine the Types of Exercises Exercises are generally grouped into three types: - Flexibility exercises such as stretching improves the range of motion of muscles and jo
Apparently. The untwisting, unzipping. Rezipping and retwisting occur sequentially and ensure that each newly formed double helix is exactly like other one. The final result is a p
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