ECOLOGY
BIODIVERSITY AND ITS CONSERVATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It increases the number of organisms that have useful genes
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It increases the ability of a species to adapt to environmental changes.
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It produces a variety of species within a biological community
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It randomly distributes members of a species throughout an ecosystem
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Detailed explanation-1: -Genetic diversity serves as a way for populations to adapt to changing environments. With more variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment. Those individuals are more likely to survive to produce offspring bearing that allele.
Detailed explanation-2: -Maintaining high genetic diversity allows species to adapt to future environmental changes and avoid inbreeding. Inbreeding, which happens when there are small, isolated populations, can reduce a species’ ability to survive and reproduce.
Detailed explanation-3: -Genes hold the key to survival. Over time, species have developed traits to help them flourish in their natural environment and survive in changing environments. The more diverse genes a species has, the better its chances of resisting disease, prevailing over other stresses and adapting to changing conditions.
Detailed explanation-4: -Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Detailed explanation-5: -Explanation: Increased genetic diversity leads to increased chance of species survival. Species with a limited variety of phenotypes and where all members of the species are similar to one another have a smaller chance of coping with environmental variability compared to a species with greater diversity.