The following table shows the 200 most popular given names for male and female babies born during 2000 - 2009. For each rank and sex, the table shows the name and the number of occurrences of that name.
Endosymbiont theory is the idea that eukaryote cells arose in evolution by the fusion of previously free-living protists (prokaryotes).p143 The theory was first suggested by the Russian botanist Mereshkovsky in 1905.
Germ theory of disease. The germ theory of disease states that many diseases are caused by microorganisms. These small organisms, too small to see without magnification, invade humans, animals, and other living hosts. Their growth and reproduction within their hosts can cause a disease.