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Directions : The following passages and answer items that follow the passages. Your answers to these items should be based on the passages only. Passage Natural selection cannot anticipate future environments on the earth. Therefore, the set of existing organisms can never be fully prepared for environmental catastrophes that await life. An outcome of this is the extinction of those species which cannot overcome environmental adversity. This failure to survive, in modern terms, can be attributed to the genomes which are unable to withstand geological vagaries or biological mishaps infections, diseases and so on). In biological evolution on the earth, extinction of species has been a major feature. The earth may presently have up to ten million species, yet more than 90% of species that have ever lived on the earth are now extinct. Once again, the creationist doctrines fail to satisfactorily address why a divine creator will firstly bother to create millions of species and then allow them to perish. The Darwinian explanation for extinct life is once again simple, elegant and at once convincing organisms go extinct as a function of environmental or biological assaults for which their inheritance deems them ill-equipped. Therefore, the so-called Darwinian theory of evolution is not a theory at all. Evolution happens-this is a fact. The mechanism of evolution (Darwin proposed natural selection) is amply supported by scientific data. Indeed, to date no single zoological, botanical, geological, paleontological, genetic or physical evidence has refuted either of the central two main Darwinian ideas. If religion is not taken into consideration, Darwinian laws are acceptable just like the laws proposed by Copernicus, Galileo, Newton and Einstein-sets of natural laws that explain natural phenomena in the universe.
With reference to the passage, the following assumptions have been made:
1. Only species that have the ability to overcome environmental catastrophes will survive and perpetuate.
2. More than 90% of the species on the earth are in the danger of getting extinct due to drastic changes in the environment.
3. Darwin's theory explains all the natural phenomena,
Which of the above assumptions is/are valid?
1 only
1 and 2 only
3 only
1, 2 and 3
Answer: (a) Statement 1 is correct: as the passage states that the extinction of a species is primarily driven by non adaptation to environmental catastrophe. It is reflected in the phrase “An outcome of this is the extinction of those species which cannot overcome environmental adversity. This failure to survive, in modern terms, can be attributed to the genomes which are unable to withstand geological vagaries or biological mishaps infections, diseases and so on)”. Statement 2 incorrect: It is an incorrect inference as the passage does not predict the extinction probability in the future. It only provides the extinction data for the past in the phrase, “The earth may presently have up to ten million species, yet more than 90% of species that have ever lived on the earth are now extinct.” Statement 3 incorrect: It is incorrect that Darwin’s theory explains all natural phenomena. It only explains the natural phenomena of evolution. In the passage, the author mentions the names of Copernicus, Galileo, Newton and Einstein for explaining natural laws that explain various phenomena in the universe- “Darwinian laws are acceptable just like the laws proposed by Copernicus, Galileo, Newton and Einstein-sets of natural laws that explain natural phenomena in the universe
By: Munesh Kumari ProfileResourcesReport error
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