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Modern Theory
Naturalistic theory: According to this theory Life originated upon our earth spontaneously from nonliving matter. But there are two significant points in this regard to be carefully noted:
(A) Firstly: life originated upon the earth, not by a sudden chance or random mixing of non living matter, but as a result of a long, series o physical chemical changed which brought about a gradual evolution of, first inorganic and, then, organic compounds in according ever changing environmental conditions. This is called Chemical Evolution. It culminated into the synthesis of Protoplasm or Life Substance as the most complex crystsllo colloid mixture of Nature.
(B)Secondly: a chemical evolution of matter as envisaged above cannot occur under the present Environmental conditions upon earth; conditions suitable for it existed only upon primitive earth.
Define Trace elements for school children and adolescents? Iodine requirements peak in adolescence. Consumption of iodized salt should be ensured. Adequacy of zinc for growth i
What do you understand by Polyp? The sessile, asexual stage in the cnidarian life cycle. In some species they are independent organisms; in others, they form colonies where som
Q. What is polyembryony? Polyembryony is the phenomenon in which a single embryo in its initial embryonic stage divides itself forming many new individuals of genetically ident
OESTROU S CYCLE - Also known as heat period. Common in rabbit, cat, dog, sheeps. In this period desire for copulation occur. Possibility of fertilization is 100%.
Define about the Deficiency of cyanocobalamin? Malabsorption of vitamin B 12 can occur at several points during digestion. By far, the most important condition resulting in v
Explain the Ecological Approach in Taxonomy You already known that the use of ecological data in classification has been used since the time of Plato who considered aquatic, te
Q. Define the Herbals? During the Middle Ages, following the decline of the Greek and Roman civilisations, little significant botanical progress was made. The early herbals (i.
Proteins of Plant Origin - Nuts Nuts are excellent sources of proteins. Examples of nuts include cashew nuts, almond nuts , hazel nuts , coconuts, walnuts, brazil nuts ,cashew
Q. How long after ovulation must fecundation occur to be effective? If fecundation doesn't occur around 24 hours after ovulation the released ovum often dies.
Neuropsychological understanding of behavioural deficits Behaviour is an outcome of the interaction of the brain with the environment. A composite of multiple psychological pro
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