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Only in the sense that natural selection needs variations in organisms to select from. Evolution could take place by random processes, such as genetic drift, or geographic processes, such as gene flow, but only natural selection causes the adaptive change that results in speciation.
What else can I help you with?
How did Darwin's theories differ from his predecesors?
Darwin's theories were revolutionary because they proposed a mechanism, natural selection, by which evolution could occur through the adaptation of populations to their environment. This was different from the prevailing idea of fixed species created by a divine force. Darwin's focus on variation within a population and the importance of competition and survival for shaping evolution set his theories apart from his predecessors.
Is evolution chance or necessity?
Evolution involves both elements of chance and necessity. Chance events like mutations generate genetic variation, providing the raw material for natural selection to act on. Necessity comes in when certain traits provide an advantage in specific environments, leading to those traits becoming more common in a population over time.
What is the mechanism for determining evolution of life?
The mechanism for determining the evolution of life is natural selection, proposed by Charles Darwin. Natural selection refers to the process by which organisms with advantageous traits for survival and reproduction are more likely to pass on their genes to the next generation, leading to the gradual change in populations over time. Genetic mutations also play a key role in introducing new variations that can contribute to evolution.
Evidence that supports the theory of evolution of the studies of what?
Evidence supporting the theory of evolution comes from various fields, including genetics (DNA similarities between species), paleontology (fossil record showing transitional species), embryology (similarities in early stages of development), and biogeography (distribution of species across different regions). These studies collectively provide strong evidence for the process of evolution by natural selection.
Is it true that there is no variation between racial and gender groups when it comes to sexual activities?
No, there is often variation in sexual behaviors and preferences among different racial and gender groups. Factors such as cultural norms, societal expectations, and personal experiences can all influence an individual's attitudes towards and engagement in sexual activities. It's important to recognize and respect this diversity.
What is variation in evolution?
A variation of a gene is called and allele. Different alleles are caused by mutations.
What comes first mutation or natural selection?
Natural selection can only work on genetic variation that already exists. So mutation comes first, then natural selection.
How did Darwin's theories differ from his predecesors?
Darwin's theories were revolutionary because they proposed a mechanism, natural selection, by which evolution could occur through the adaptation of populations to their environment. This was different from the prevailing idea of fixed species created by a divine force. Darwin's focus on variation within a population and the importance of competition and survival for shaping evolution set his theories apart from his predecessors.
How do paleontologists help with evidence of evolution?
Palaeontologists uncover, examine, categorize and publish about fossils. An important part of what we know of the natural history of life on Earth comes from fossil evidence.
Who invented natural selection?
Evolution is what happens when organisms reproduce with variation of traits, and those variant traits are inherited by further offspring. It is the observed effect of the differential reproductive success of variants. Therefore, in order to have evolution, one single condition needs to be met: that autonomous replicators exist that reproduce with variation. The question therefore becomes: where did life originate from?
Why is Darwin's theory considered incomplete?
All theories are incomplete and never proven. They are the explanations for observations, laws, facts and experimentation. They can be added to and even overturned if now information comes to light. Darwin himself had a very poor mechanism for heredity that was overturned by Mendel's genetic discoveries.
Is evolution chance or necessity?
Evolution involves both elements of chance and necessity. Chance events like mutations generate genetic variation, providing the raw material for natural selection to act on. Necessity comes in when certain traits provide an advantage in specific environments, leading to those traits becoming more common in a population over time.
What does Victreebel evolve on HeartGold?
Victreebel does not have an evolution. It is the second and final evolution of Bellsprout. Nothing comes after Victreebel.
Are you in favor of Darwin's theory of evolution?
It does not matter to the truth whether I am in favor of it or not. The theory of evolution by natural selection is not only no longer Darwin's it is supported by myriad line of converging evidence and explains much about the fact of evolution. No other explanation comes close. The question is ill posed and smacks of religious thinking that does not understand science or even logical analysis.
How do you bleed?
it comes from are bodys natural reaction with knifes it comes from are bodys natural reaction with knifes
When was It Just Comes Natural created?
It Just Comes Natural was created on 2006-10-03.
Is hair color continuous or discontinuous variation?
Hair colour is continuous because there is a continual range of values when it comes to hair colour
