Konstantin Mereschkowski died in 1921.
Konstantin Gropper was born on September 28, 1982, in Biberach an der Ri, Baden-Wrttemberg, West Germany [now Germany].
The endosymbiotic theory was first articulated by Russian botanist Konstantin Mereschkowski in 1910. It states that several key organelles of eukaryotes began as symbioses between two or more single-celled organisms.
Konstantin Halafoff died in 1969.
Konstantin Gorbatov died in 1945.
Konstantin Tretiakoff died in 1958.
Konstantin Aksakov died in 1860.
Konstantin Vasilyev died in 1976.
Konstantin Chebotaryov died in 1974.
Konstantin Igumnov died in 1948.
Konstantin Mostras died in 1965.
Konstantin Chkheidze died in 1974.
Konstantin Velichkov died in 1907.