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No. Some variations are detrimental and that is what natural selection selects on; the beneficial variation in the immediate environment survives and is reproductively successful, driving genes into the gene pool. The detrimental variation is culled and has lesser representation in the gene pool unto disappearance.
What else can I help you with?
Explain why variations are needed for natural selection to occur?
Certain variations are more likely to be passed on to future generations than others, because those variations help their possessors reproduce more successfully. Other variations are less likely to be passed on because they do not help, or even hinder their possessors in successful reproduction. We say that the helpful variations are selected by the very nature of things. Without variation, whether an organism reproduces successfully or not is just a matter of blind chance. There is no natural tendency for certain individuals to be more successful at reproducing than others, because there are no differences between individuals.
Is both of sexual and asexual have genetic variations?
Yes, both sexual and asexual reproduction can lead to genetic variations. Sexual reproduction generates genetic diversity through the shuffling of genetic material from two parents, while asexual reproduction can involve mutations and genetic changes over time.
Why mutations can be helpful to a species?
Mutations can introduce new genetic variations into a population, which can drive evolution by providing diversity for natural selection to act upon. This diversity can lead to individuals with advantageous traits better suited to their environment, ultimately enhancing the species' ability to survive and reproduce.
What are genetic variations that are located close together called?
Genetic variations that are located close together on a chromosome are called linked variations or genetic linkage. These variations tend to be inherited together because they are physically near each other on the same chromosome.
Are all bacteria the same and do not have variations within the species?
No, not all bacteria are the same and there are variations within the species.
Does natural selection lead to helpful or harmful variations that continue through the species?
HeLpful
How helpful variations accumulate in a specie over time?
Helpful variations accumulate in a species over time by selecting those traits that allow it to better live in the environment it is in.
A series of helpful variations in a series results in?
natural selection
What may a series of helpful variations in a species result in?
Adaptation
A series of helpful variations in a species may result in .?
Adaptation
What might a series helpful variations in a species result in?
Adaptation
How do helpful variations accumulate in species over time?
They don't die as often (or as fast) as the "non-helpful" variants.
Which might a series of helpful variations in species result in?
natural selection
Are fungi always helpful?
no, not really
What are the genetic variations with asexual reproduction?
sex is always the answer.
How do helpful variation accumulate in a species over time?
Helpful variations accumulate in a species over time by selecting those traits that allow it to better live in the environment it is in.
What happens if it always rained?
that would be helpful
