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What is an Evolution?
Evolution is defined as the changes that occur in an organism in order to adapt itself to its environmental surroundings over the course of time which may be several thousand years or a generation. Get Evolution Assignment Help from Tutorspoint experts.
Evolution plays a very critical role in creating vast diversity of organisms present on the earth. An evolution keeps the basic characteristic features the same from generation to generation but varies phenotype characteristics, intellectual ability, and the capacity to sustain environmental conditions.
Robert Charles Darwin is known as the father of evolution, as he proposed the first evolution theory. Darwin’s theory explained that life evolved from simple forms such as ammonia (nitrogen), methane (carbon and hydrogen), hydrogen sulfide, and water, which pre-existed on earth to form more complex forms of life.
What are Fossils:?Fossils are essential information to study the ancestry of organisms previously existing on our planet. When organisms die, some body parts of the organism might not be decomposed easily and remain hardened in mud or rocks retaining the impression of the body of the organism. These impressions are known as fossils.
What are the stages of Evolution?
Evolution occurs in stages due to the error copying mechanism of DNA occurring during cell division which varies from generation to generation. Evolution is seen in all organisms as all organisms need to survive and adapt to environmental conditions.
What is Molecular phylogeny?
Changes in DNA occurring during cell division can be traced back in order to determine its ancestry. The organisms which are distantly related show vast differences in their genetic material. This type of study understands the evolutionary relationships between organisms.