0
Mutations are believed by many evolutionists to provide a means for variablity in some of the characteristics of a species. For example, extra fingers and toes. However, since all mutations are DNA-destructive and result in a loss of information, increasing complexity from mutations is believed by many to be impossible. This is especially true if one subscribes to Information Theory, which states that information only comes from greater pre-existing information. Extra fingers only demonstrate an error in creating the correct number of digits, not additional information.
If a certain variation provides an advantage for an individual (or inter-breeding group) they these individuals will survive and breed where all others will die. This is natural selection (not evolution). The offspring of the survivors will all carry the traits of their parents. Therefore, the fittest will tend to thrive, but not change into a different species, at least not through this mechanism.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoNatural Selection is when individuals of a species can't survive did to extreme environmental changes. But individuals that do survive pass down those inherited helpful traits to their offspring then the cycle continues. Natural Selection take decades to occur and is never really observed.
Add your answer:
Earn +20 pts
What best describes how a species changes over time?
Natural selection causes those organisms that are better suited to survive and reproduce to pass on their genes to future generations, causing their children to be better suited to their environment as well. Over time, these traits that have been selected by natural selection will result in an overall change in a species.
What concept of evolution explains why organisms are constructed to meet the demands of their environment?
Natural selection explains adaptive change in the immediate environment.
Compare and contrast natural selection and evolution?
Natural selection is the most powerful driver of evolution and it is the only mechanism of evolution ( genetic drift and gene flow are two other mechanisms ) that leads to adaptive change. Natural selection is the nonrandom survival and reproductive success of of randomly varying organisms. Evolution is the change in allele frequency over time in a population of organisms.
What principle states that living things change gradually over time through natural selection?
The theory of evolution by natural selection.
What is the mechanism of evolution?
The main driving mechanism of evolution is natural selection. Though genetic drigt and gene flow can also cause evolution.
What is the process called where the environment in which a species lives causes a change to the collective genes of that species?
Natural selection, which is the mechanism for evolution.
Two theories on how species change over time?
The scientific theory is evolution.
Evolution is the gradual change in phenotype frequency of a species what process causes evolution?
Mutation, genetic drift, gene flow and the driver of adaptive change, natural selection.
What is the idea that species originate through a gradual change of adaptations?
The theory of evolution by natural selection. Called gradualism.
What is the gradual development of new organisms from preexisting organisms called?
I believe you are referring to evolution, which occurs as a result of natural selection causing species to change into new species over time.
How do you use natural selection and evolution in a sentence?
didn't you just do that? or did you mean something else? ... Or........... Over time, the change in a species is called evolution. and. Natural selection helps certain animals in a species survive.
What best describes how a species changes over time?
Natural selection causes those organisms that are better suited to survive and reproduce to pass on their genes to future generations, causing their children to be better suited to their environment as well. Over time, these traits that have been selected by natural selection will result in an overall change in a species.
What was Darwin's belief about the origin of species?
After observing nature for some time, Darwin came to believe in natural selection causing a change in the evolution of species.
What process is a mechanism of evolution?
Natural selection is a mechanism of adaptive change in evolution.
Charles Darwin's idea of how species change over time is called what?
Descent with modification. This is what Darwin called evolution.
Which is more likely to be true natural selection or evolution?
Evolution, of course. Evolution can happen without natural selection in some cases; drift, flow. Generally though, natural selection causes evolution and then, by definition, would come first.
Can RNA undergo a natural selection and cause evolution or change?
no
