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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.
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∙ 13y ago
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Is both of sexual and asexual have genetic variations?
Yes, there will always be mutations.However, with sexual reproduction, there is a tendency for greater genetic variations.
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.
Can mutations be helpful orr are they always bad?
They can be very good sometimes if someone needs a heart or something.
Are protists helpful or harmful?
Depends.. 95% of all microorganisms are helpful. Most protists are usually helpful.
Are dinoflagellates helpful or harmful?
Helpful
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.
What might a series helpful variations in a species result in?
Adaptation
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
A series of helpful variations in a series results in?
natural selection
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
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.
Is both of sexual and asexual have genetic variations?
Yes, there will always be mutations.However, with sexual reproduction, there is a tendency for greater genetic variations.
Are fungi always helpful?
no, not really
