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What is speciation?
The Speciation is the process by which different species emerge from a common ancestor species. The Speciation generally begins when populations of the same species become geographically isolated, that is when they are separated by some physical barrier that disallows crossing between individuals from one population and individuals of another population.
A Group that for a long time is kept under geographical isolation tends to accumulate different phenotypical characteristics from each other by means of genetic variability (mutations and recombination) and natural selection and when those differences reach a point that makes the crossing of individuals of one group with individuals of the other group not possible or the generation of fertile offspring no longer happens it is said that speciation has occurred.
Metamorphosis The phenomenon of metamorphosis is described as a process during development which involves a remarkable change in morphology and physiology of the larva, so tha
What is Radioactivity ? Radioactivity : Some isotopes, called radioisotopes, have unstable nuclei that release high energy particles or radiant energy, or both. An example
SODIUM The element is available in table salt. A proper balance of sodium and potassium is essential. Its absorption is under control of aldasterone. The various f
Q. Of which substance do elastic fibers of the connective tissue are made? What are few functions of these fibers? The elastic fibers are made of a protein called as elastin.
Zanamivir (Relenza) Started within 2 days after onset of symptoms, this orally inhaled neuraminidase inhibitor can shorten the duration of illness and may decrease the incide
P r o s p ec ts of meat products The demand for convenience meat based fast food is ever increasing due to rapid industrialization and urbanization, higher standards of l
I need help in pipeline processing in computer architecture.
Why in some cases is mitosis a synonym of reproduction? In some living beings asexual reproduction happens by many means: binary division, schizogony, budding, grafting, etc. I
Q. Which type of cell came first in evolution - the eukaryotic cell or the prokaryotic cell? This is an interesting problem of biological evolution. The majorly accepted hypoth
Describe Arteriovenous Continuous Murmur? Arteriovenous Continuous Murmur : These can be congenital as in coronary artery fistula entering RA/RV/PA, sinus of valsalva to rig
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