0
Many of the varities are pre-adaptions which have no immediate benefits to the individuals. However, they remain in the population. whenever, environment under goes a drastic change,the pre-adaptations in some members of the population allow the later to survive, grow in its former size. therefore, it is not necessary that variations are beneficial to individuals developing them but can prove useful to the species.
What else can I help you with?
Is too much variation in species a bad thing?
Too much variation in species can lead to ecological instability, as it may disrupt established relationships within ecosystems, potentially resulting in the decline of certain populations or the dominance of invasive species. However, biodiversity is generally seen as beneficial because it enhances resilience, adaptability, and ecosystem services. A balanced level of variation allows ecosystems to thrive and adapt to changes, such as climate shifts. Ultimately, the impact of variation depends on the specific context and the ecological dynamics at play.
What is the adaptive value of the process of crossing over as a source of variation in a species?
The process of crossing over during meiosis increases genetic variation within a species by shuffling genetic material between homologous chromosomes. This genetic diversity enhances the ability of a species to adapt to changing environments and increases the likelihood of beneficial traits being passed on to offspring. Ultimately, this can improve the species' chances for survival and successful reproduction.
How does natural selection produce genetic variation within a species?
It's mainly mutations in the DNA and recombination of chromosomes that produce the genetic variation. Natural selection then favors those changes that give rise to greater reproductive success.
What are advantages of variation?
Advantage- On the species level, variation allows a population to maintain a healthy diversity, allowing it to cope with changing circumstances.Disadvantage- On the individual level, variation may lead to detrimental changes as well as neutral and beneficial changes.
Why are there so much variation with a species?
Variation within a species is due to genetic diversity, which arises from random mutations, recombination during reproduction, and gene flow from other populations. This variation provides the raw material for natural selection and enables species to adapt to changing environments.
How is genetic variation related to a species's chances of becoming extinct?
Little or no variation could lead to failure to adapt to changing conditions. Too much variation would prevent the species from passing on beneficial traits because they would change too rapidly.
How is genetic variation related to species chances of becoming extinct?
Little or no variation could lead to failure to adapt to changing conditions. Too much variation would prevent the species from passing on beneficial traits because they would change too rapidly.
How is genetic variation related to a species chance of becoming extinct?
Little or no variation could lead to failure to adapt to changing conditions. Too much variation would prevent the species from passing on beneficial traits because they would change too rapidly.
What are specific examples of variation within a species?
Human species, as in the variation in height.
When do you think cloning is not beneficial?
When there is no variation at all, can you imagine all people are just the same. and also when there is an epidemic , since all of the cloned species is the same, all species may died and resulted in extinction.
Why all mutation are not necessarily harmful?
Mutations are changes in DNA. Most are neutral or beneficial. Mutations have allowed animals to adapt to new environments and new species to evolve.
What is the adaptive value of the process of crossing over as a source of variation in a species?
The process of crossing over during meiosis increases genetic variation within a species by shuffling genetic material between homologous chromosomes. This genetic diversity enhances the ability of a species to adapt to changing environments and increases the likelihood of beneficial traits being passed on to offspring. Ultimately, this can improve the species' chances for survival and successful reproduction.
Mutations are a source of what in a species?
Genetic variation, which can lead to evoloution, and then potentially a new species.
What is a major cause of variation within species?
Genetic variation, caused by mutations in DNA, is a major source of variation within species. Mutations can lead to differences in traits such as color, size, and behavior, allowing for natural selection to act upon these variations.
What kind of pollination increases variation within a plant species?
Cross-pollination increases variation within a plant species by introducing new genetic material from multiple individuals. This leads to increased genetic diversity and the potential for beneficial traits to emerge through recombination.
Why was variation the weakest concept in Darwin's theory?
Variation?!?! That was an obvious observation of naturalists that opposed Darwin's concepts totally. Unless you mean the heritability that leads to variation? Explaining that variation was the problem. Creationists of the time explained this by positing god's whimsy in designing his species, but this was shown to be nonsense as natural processes are at work in variation and this can be shown experimentally. The concept of natural selection explained how that natural variation was selected on beneficial traits. What Darwin did not understand is how that variation was passed on to progeny. His explanation was wrong.
Why is variation good for a species?
Sometimes positive variation can improve some ability of the species adapted to the environment. For example, a kind of virus can be killed by medicine A. A small part of the virus has some variation that make it can be alive with medicine A. The species of the virus can exist in future, or it will disappear in the future in the environment full of medicine A. Besides, positive variation can provide some capacity for the species to get more resource in the competition. Of course, there is negative variation that might contribute to the disappearance for the species. That is just another side of variation.
