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Variation in organisms is expressed through differences in their genetic makeup, which can result from mutations, gene shuffling during reproduction, and environmental influences. These genetic differences manifest in observable traits, such as physical characteristics, behaviors, and physiological responses. Additionally, variation can be influenced by natural selection, where certain traits may provide a survival advantage, leading to their increased prevalence in a population over time.

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4mo ago

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Related Questions

Which is a source of genetic variation in sexually-reproducting organisms?

Basic source of variation in all organisms is mutation .


What is the importance of variation in organism?

Variation is important among organisms for us to indicate which is which :))


What are variation?

gray wolves variation trait


What are the two types of variation shown by living organisms?

The two types of variation shown by living organisms are genetic variation, which is differences in DNA sequences among individuals, and phenotypic variation, which refers to observable traits or characteristics that vary among individuals.


What are the islands where Charles Darwin observed variation among organisms?

Galapagos Islands are the islands where Charles Darwin observed variation among organisms.


What is the slight difference among objects or organisms that are the same basic type?

VARIATION


What is a source of genetic variation in organisms?

Human recombination is a significant source of genetic variation.


Why all organisms show variation?

Variations arise due to recombinations(gene rearrangements) ,mutations etc.The former is the principal source of variation in sexually reproducing organisms and the latter is the source of variation in asexual organisms.According to Darwin variation arises due to chance since all the above mentioned process occur in nature spontanuously all organisms show variation


What are recessive expressed in?

homozygous organisms


Is genetic variation found only in wild organisms in nature?

No.


What is an organisms way its genotype is expressed?

Phenotype


What is essnetial to evolution?

Genetic and morphological variation. Without variation in organisms there would only be the shifts of genetic drift and gene flow in organisms. When organusms are varied then one can be selected from the other by the environment and the organisms ability to reproduce against that environment. Then there is evolution.