Question:
According to the theory of spontaneous generation
According to the theory of spontaneous generation
Updated On: Jun 21, 2022
- life originated from outer space
- life originated from decaying and rotting matter like straw, mud etc.
- life came from pre-existing life
- life came from both living and non-living matter.
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The Correct Option is B
Solution and Explanation
According to the theory of spontaneous? generation (abiogenesis . or autogenesis), life originated from non-living things in a spontaneous manner. This concept was held by. early Greek_ philosophers like Thales, Anaximander, Xanophanes, Empedocles, Plato, Aristotle, etc. In ancient Egypt, it was believed that the mud of the Nile could give rise to frogs, toads, snakes, mice and even crocodiles when warmed by? the sun. Van Helmont (1577-1644) held that human sweat and wheat grains could give rise to organisms. These beliefs had no scientific grounds and hence were discarded.
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Concepts Used:
Evolution
Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.