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Evolution can occur at the level of populations rather than individuals. Changes in allele frequencies within a population over generations is the basis of evolution, and this can happen through mechanisms like natural selection, genetic drift, and gene flow.

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1y ago

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The smallest unit in which evolution occurs is?

The smallest unit in which evolution occurs is a population.


Does the process of evolution occur at the individual level, where selection happens to individuals, or at the population level, where selection happens to populations?

Evolution occurs at the population level, where selection happens to populations rather than individuals.


Does convergent evolution result in speciation?

All evolution that results in increasing genetic divergence between subpopulations may result in speciation. That includes convergent evolution: convergence occurs at the phenotypical level, not at the genetic level.


Which unit of organism evolves and individual a population or a species?

Evolution occurs at the population level, not at the level of an individual organism or a species. Changes in gene frequencies within a population over time drive the process of evolution.


What are some examples of divergent evolution?

All reproductively isolated populations diverge genetically. Even in cases where convergent evolution occurs, this is only at the behavioural and morphological level. At the molecular and the genetic level, even these instances still diverge at the genetic level.


Does evolution happen on a genetic level?

Yes, evolution occurs on a genetic level through changes in the frequency of genetic variations over successive generations. These genetic variations can lead to changes in an organism's traits that can be passed on to offspring, driving evolution.


Which Pokemon does Totodile evolve into?

AnswerTotodile evolves into Croconaw. This evolution occurs around level 18 (although it can be as early as levels 14 or 16 if you are its Original Trainer). Croconaw then evolves into Feraligatr around level 30 (although level 33 is also an acceptable evolution level in different versions).


What is the smallest level on which evolution can occur?

Natural selection acts upon the individual organism, whilst evolution occurs at the population level. The environment selects for organisms best adapted for highest survival and reproductive success. Natural selection requires three key things - variation, inheritable traits, and differential survival/reproduction. Species will produce more offspring than the environment can support(carrying capacity), and the population tends to be fairly stable until resources are limited. A struggle for existence is created, and natural selection ensures that weaker traits die out while stronger traits live on. Organisms show variation in characteristics, and that variation is heritable. Survival depends on inherited traits, and unequal survival/reproduction leads to adaptation and evolution. Therefore, while the individual organism can adapt, the population is what actually evolves.


What is evolution in the smallest scale called?

Microevolution.


What is the smallest group of organisms in which evolution can take place?

The smallest group of organisms wherein evolution can take place is a population. This is because all methods of evolution require chromosomes from more than one organism.


Why can't evolution cannot occur at the individuals level but must occur at the population level?

Evolution is a population-level process because it involves changes in the gene frequencies of a population over generations. Individual organisms do not evolve, as they do not pass on acquired traits to their offspring. Evolution occurs through mechanisms such as natural selection, genetic drift, and gene flow that act on the variation within a population.


What three items do evolutionists disagree about?

One is that evolution occurs gradually and consistently.The other is that evolution occurs as a result of competition for 'niches'