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How can natural selection work on a population of chipmunks introduced to arctic temperatures?
If you put a bunch of chipmunks in freezing cold temperatures, they are all going to die...
But if they didnt, only the weak ones that couldn't stay warm would die out. This would allow the ones that could stay warm (lets pretend they have parka-like coats) to produce offpring, some of which would also have abnormally furry coats. This would continue through several generations until most of the chipmunks had furry coats.
What else can I help you with?
What was the title of Charles Darwin's book?
The title of Charles Darwin's most famous book is "On the Origin of Species by Means of Natural Selection." It was published in 1859 and introduced the theory of evolution by natural selection.
A population of mice lives near a stream The larger mice tend to live longer and over many generations the average mouse size gets larger What type of selection is this?
Directional selection
What is the relationship between evolution and natural selection?
Evolution is the process of change in species over time, while natural selection is a mechanism by which evolution occurs. Natural selection acts on genetic variation within a population, favoring traits that increase an individual's chances of survival and reproduction in a given environment. Over time, these advantageous traits become more common in the population, leading to evolutionary change.
Explain the difference between artificial and natural selection?
Artificial selection is anthropogenic -- humans interfere with nature to determine what traits get passed on, whereas natural selection is when through sexual reproduction the traits passed on are determined by survival of the fittest.
A population of rabbits lives in a forest. The habitat features many small spaces for hiding. Over many generations the average size of the rabbits gets smaller and smaller. What type of selection is?
directional selection
Who introduced the evolution theory?
Darwin introduced the modern theory of evolution by natural selection, but it was also introduced by Lamark and other earlier biologists but Darwin was first to theorize about natural selection as the mechanism.
In an unchanging environment selection in a well adapted population is?
In an unchanging environment, selection in a well-adapted population is stabilizing selection. This type of selection favors individuals with intermediate phenotypes, maintaining the status quo of the population's genetic characteristics.
Who introduce the theory?
Darwin introduced the modern theory of evolution by natural selection, but it was also introduced by Lamark and other earlier biologists but Darwin was first to theorize about natural selection as the mechanism.
What does not add new allies to a population gene pool?
Mutations that occur in individual members of a population do not add new allies to a population gene pool. Instead, new allies can be introduced through processes like gene flow, genetic drift, and natural selection.
How do disruptive selection and directional selection differ in their impact on the evolution of a population?
Disruptive selection and directional selection are two types of natural selection that impact the evolution of a population in different ways. Disruptive selection favors extreme traits at both ends of the spectrum, leading to the divergence of a population into two distinct groups. On the other hand, directional selection favors one extreme trait, causing the population to shift towards that trait over time. In summary, disruptive selection promotes diversity within a population, while directional selection drives the population towards a specific trait.
Introduced the concept of biological evolution through natural selection.?
Charles Darwin
Which type of natural selection favors average individual in a population?
It is stabilizing selection
Natural selection requires that individuals in a population are?
Natural selection requires that individuals in a population are
What is the most common type of natural selection?
The most common type of natural selection is stabilizing selection. This type of selection favors average traits in a population, reducing genetic diversity and maintaining the status quo of a population's characteristics.
How does the process of purifying vs positive selection impact the selection of traits in a population?
The process of purifying selection removes harmful traits from a population, while positive selection promotes the spread of beneficial traits. Purifying selection reduces genetic variation by eliminating harmful mutations, leading to a more uniform population. Positive selection, on the other hand, increases genetic diversity by favoring advantageous traits, which can lead to the evolution of new characteristics in a population.
Selection favors one extreme form of a trait in a population.?
Tends to result in a population whose individuals have extreme traits is what? ----> it is directional selection
Which type of natural selection in which the mean characteristics of a population are preserved?
This type of natural selection is called stabilizing selection because the mean traits of the population are being selected for against the immediate environment.
