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The dissolution of Czechoslovakia (Czech: Rozdělení Československa, Slovak: Rozdelenie Československa), which took effect on December 31, 1992, was the self-determined secession of the federal republic of Czechoslovakia into the independent countries of the Czech Republic (also known as Czechia) and Slovakia.
Economically, however, it was surely partly because on the one hand there were no serious economic problems at the standard-of-living level in Czechoslovakia as opposed to e.g. Poland, the Soviet Union and Hungary, and on the other hand the catastrophic initial effects of the reforms in the Soviet Union and Hungary could already be seen in the ...
On the other hand, the common definition of adaptation is a central concept in evolution: a trait that was functional to the reproductive success of the organism and that is thus now present due to being selected for; that is, function and evolution are inseparable.
The Church severely discouraged and prohibited consanguineous marriages, a marriage pattern that has constituted a means to maintain kinship groups (and thus their power) throughout history; Canon law followed civil law until the early ninth century, when the Western Church increased the number of prohibited degrees from four to seven. [47]
This course is designed for students who wish to pursue an interest in the life sciences. The College Board recommends successful completion of high school biology and high school chemistry [2] before commencing AP Biology, although the actual prerequisites vary from school to school and from state to state.
Divorce can affect both the people getting divorced and any children they may have in both the short and long term. After a divorce, the couple often experiences effects including decreased levels of happiness, [1] a change in economic status, and emotional problems. The effects on children can include academic, behavioral, and psychological ...
Strength of natural selection plot as a function of age. The antagonistic pleiotropy hypothesis (APT) is a theory in evolutionary biology that suggests certain genes may confer beneficial effects early in an organism's life, enhancing reproductive success, while also causing detrimental effects later in life, contributing to the aging process.
"Now, here, you see, it takes all the running you can do, to keep in the same place." — Lewis Carroll [4]. In 1973, Leigh Van Valen proposed the hypothesis as an "explanatory tangent" to explain the "law of extinction" known as "Van Valen's law", [1] which states that the probability of extinction does not depend on the lifetime of the species or higher-rank taxon, instead being constant ...