OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Change is the result of survival of the fittest
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Body structures can change according to the actions of the organism
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a small population size decreases the rate of evolution
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artificial selection is the basis for evolution
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Detailed explanation-1: -According to Lamarck, new needs (besoins) arise in animals as a result of a change in the environment. This leads to new types of behaviour involving new uses of pre-existing organs. Their use leads to an increase in size or to other methods of functioning. Conversely, the disuse of other parts leads to their decline.
Detailed explanation-2: -Lamarckism was proposed by Jean-Baptiste de Monet Lamarck in the year 1744-1829. This theory was based on the principle that all the physical changes occurring in an individual during its lifetime are inherited by its offspring.
Detailed explanation-3: -Which is a major concept included in Lamarck’s theory of evolution? Body structure can change according to the actions of the organism. the actions of organisms as they use or fail to use body structures. Thomas Malthus.