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Pollination
Pollination refers to the transfer of pollen from dehiscing anthers to the pistil. Unlike animals, plants cannot move to their mates for sexual reproduction. Hence, they need some external device or agency for the transfer of pollen grains from the male parent to the stigma of the female parent. Exceptionally, in Vallisneria, an aquatic plant, complete male flower may be transported to the female flowers, the physical (wind and water) and biological (insects, birds and bats) agencies promote cross-pollination. The dehiscence of anthers and the transfer of pollen are the prime requirements of pollination.
D o w n e r s cow syndrome The Downer's cow, otherwise known as creepers, is commonly a fatal condition of dairy animal associated with the unsuccessful treatment of cas
Mechanism of Maturation The basic mechanism of maturation of ovum is more or less similar in all organisms. The primordial germ cells that enter into the ovary divide mitotica
Determine the Food Sources of Manganese? The food sources of manganese along with their content are tabulated in Table. Here, you can see that whole cereals, nuts, leafy vegeta
Q. What are the Physical Signs of aortic stenosis? Typically the carotid pulse in severe aortic stenosis is delayed (pulsus tardus). It is also decreased in amplitude (pulses p
Tectology: This is the study of structural organization of body. Tectology is a term which is used by Alexander Bogdanov to describe a discipline which consisted of unifying all
Pangenesis Theory (i) Charles Darwin propounded pangenesis theory. (ii) According to this theory every cell, of animal body produces many minute particles kn
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Determine Effects of probiotics on Animals? Let us briefly examine the effects that have been reported (remember most of it has been on animals): 1. In animals, probio
Congenital impotentia genarandi Some bulls which are otherwise normal and healthy produce semen containing spermatozoa with specific morphological abnormalities together with
DIGESTION OF FOOD MATERIALS Digestion, you know, involves the mixing of food, its movement through the digestive tract and chemical breakdown of the large ntolecules of food
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