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Evolution causes the appearance of a new species through mutations in exisiting lifeforms. Natural selection is the method through which species become greater or lesser in numbers. For example, if you have a bunch of blue butterflies and a bunch of brown butterflies in a forest that is primarily brown,green, and black, then the blue butterflies have a greater chance of being eaten by predators than the brown butterflies because the brown ones could camoflauge themselves next to a tree. The blue ones would decrease in numbers and not be the most "fit" for their environment due to this process of natural selection.
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What is the cause and effect of Darwin's theory?
The cause of Darwin's theory of evolution was his observations of natural variation and adaptation in species during his travels, particularly in the Galapagos Islands. The effect of his theory was a paradigm shift in biology, leading to a better understanding of how species change over time through the process of natural selection.
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 is the slow process that results in new species?
The slow process that results in new species is called speciation. This occurs when a population of a species becomes isolated from the rest of its species and over time, genetic mutations and natural selection cause it to evolve into a distinct species. This process can take thousands or even millions of years to be completed.
Do the species on our earth change over time?
Yes, it is called evolution. It happens because individuals in the species die and new ones are born. The new individuals are slightly different than the old individuals. Selection processes of many different types cause more individuals that are less well adapted to the selection criteria to die, resulting in shifts that result in the species being better adapted overall to those selection criteria.
What are the alternatives to evolution and how do they differ from the theory of evolution?
The main alternatives to evolution are creationism and intelligent design. Creationism posits that a divine creator is responsible for the origin of life and species, while intelligent design suggests that certain features of living organisms are best explained by an intelligent cause rather than natural selection. These alternatives differ from the theory of evolution in that they do not rely on the scientific principles of natural selection and genetic variation to explain the diversity of life on Earth.
What is the name of the process that cause a species to evolve?
natural selection
What a cause of natural selection?
The cause of natural selection is a change in the environment of a species. This change can have many causes. E.g. climate change, introduction of a new species, flooding, etc. When such an environmental change occurs, the individuals which are the most fit will have the biggest probability to survive and change the relative gene frequency in a species' genetic pool.
Is natural selection a cause of evolution?
No, natural selection is believed to result in evolution.
How can a mutation cause a change in the color of a species?
A mutation can cause a change in color in a species by altering the genes responsible for producing pigments. This can affect the appearance of an organism by changing the amount or type of pigment produced, leading to variations in coloration. Over time, these mutations can become fixed in a population through natural selection, contributing to the diversity of colors we see in different species.
How do variation and natural selection work together to cause evolution?
They help each other by gradually accumulate in a species, while unfavorable ones may disappear. Over a long time, natural selection can lead to changes.
Is natural selection a cause of speciation?
Yes. Without natural selection there might probably still be change, but it would produce a fine gradient of diverging morphologies in every 'direction' of change. Natural selection limits the 'directions' of change, thereby producing distinct morphologies and thus distinct species.
How did Darwin explain why Galapagos species had different adaptions and similar South American species?
Define the term Variation and natural selection how do they work together to help cause evolution
Is natural cause the same as natural selection?
No, they are two different things.
Is adaptation a cause of natural selection?
No, it's exactly the other way around: natural selection causes adaptation.
What can cause natural selection to go faster?
mutation
Which mechanism of evolution can cause adaptation?
Natural selection.
What is the cause and effect of Darwin's theory?
The cause of Darwin's theory of evolution was his observations of natural variation and adaptation in species during his travels, particularly in the Galapagos Islands. The effect of his theory was a paradigm shift in biology, leading to a better understanding of how species change over time through the process of natural selection.
