Rabies is from animals and virus is from internet and what not that I believe so
Answer:
This is because crossing over occurs between two homologous chromosomes. It involves an exchange of segments of their arms of the two chromosomes during Metaphase I of meiosis. Genes on the different chromosomes are, therefore, more likely to be crossed over than genes on the same chromosome. In addition, because sections of the arms are exchanged, genes that are close to each other on the same chromosome are more likely to be exchanged together (these are called linked genes) than genes that are far apart on the same chromosome.
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A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The word galaxy is derived from the Greek galaxias, literally "milky", a reference to the Milky Way.
Elliptical: These have a faint, rounded shape, but they're devoid of gas and dust, with no visible bright stars or spiral patterns. ...
Spiral: The Milky Way is one of the larger spiral galaxies. ...
Irregular: These are small, faint galaxies with large clouds of gas and dust, but no spiral arms or bright centers.
Answer:
If there would be no biosphere on earth the atmosphere would be quite different. There would be no oxygen to support because oxygen is liberated by plants in photosynthesis so no plants means no oxygen. The earth would be a planet without life just like Venus and Mars. Therefore, no organism would be surviving in the world.
There would be no negligible green house effect and global warming since it is all created due to activities of men.The earth's atmosphere would be much cleaner and with lesser amount of CO2 and O2 but no organism would be there to use them.
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