GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Organisms of a species no longer exist worldwide
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Organisms with a certain trait no longer exist in a population
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The dominant trait is more common than the recessive trait
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Competition eliminates a particular phenotype
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Detailed explanation-1: -Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied over time. A quarter of mammals is at risk of extinction, according to IUCN Red List estimates. To some extent, extinction is natural.
Detailed explanation-2: -The phrase “mass extinction” is used to describe one of five major events in Earth history during which many different kinds of species vanished relatively rapidly, over a few tens to hundreds of thousands of years.
Detailed explanation-3: -There are three primary anthropogenic processes that lead to species endangerment and extinction-overharvesting; the introduction of nonnative species, including the spread of disease; and habitat destruction. For most endangered species in the United States today, the most serious threat is habitat destruction.
Detailed explanation-4: -The species which no more exist on the earth are known as extinct species.