EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They can’t be seen by predators
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If the environment changes, they might be better able to adapt
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It is helpful in asexual reproduction
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They don’t recognize each other
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Detailed explanation-1: -It is necessary for the survival of species as only then will the species have the adaptability to survive in rapidly changing external conditions. Any variation which is suitable for the particular niche is selected by nature during its process of evolution. This is spread over several generations.
Detailed explanation-2: -Genetic variation in a group of organisms enables some organisms to survive better than others in the environment in which they live. Organisms of even a small population can differ strikingly in terms of how well suited they are for life in a certain environment.
Detailed explanation-3: -A genetically diverse population of individuals is more likely to survive than a population of individuals with similar genetic makeup. Variation allows some individuals within a population to adapt to the changing environment and natural selection allows the expression of those beneficial traits to persist.
Detailed explanation-4: -This happens by the process of natural selection. By natural selection, the nature of the species gradually changes to become adapted to the niche. If a species becomes very well adapted to its environment, and if the environment does not change, species can exist for a very long time before they become extinct.
Detailed explanation-5: -An adaptation is any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment.