under changed condition, which one is helpful for species to survive
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Answer:
Evolution The process by which modern organisms have descended from ancient organisms over time
Common ancestor An ancestor shared by two or more descendant species
Natural selection Evolutionary mechanism in which individuals that are better suited to their environment survive and reproduce most successfully
Variation Difference between traits in individuals of the same species
Adaptation A trait that improves an organism's ability to survive and reproduce in an environment
Fitness The ability of an organism to survive and reproduce
Artificial selection Selective breeding of organisms to promote the appearance of desirable traits in offspring
Genetic drift A mechanism of evolution in which allele frequencies of a population change over generations due to chance
Explanation:
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