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What did Darwin observed in the finch populations that supported his idea of natural selection?
Darwin observed that on the island, there were many finches, but each one of them were slightly different.
Darwin noticed that beak shapes and sizes differed among the finches. This led him to believe that finches evolved differently in response to different environments.
The variation in beak size and body size that showed, at a latter date, that all of these birds he thought were vastly different species (wrens, warblers and such ) were one ancestral finch species adapted to many different niches on the many different Islands of the Galapagos.
What else can I help you with?
How did Darwin observe that all species populations have the reproduction potential to increase exponentially over time?
Darwin observed that all species populations have the reproduction potential to increase exponentially over time through his studies on natural selection and adaptation. He noticed that individuals within a population have the capacity to produce more offspring than the environment can support, leading to competition for resources and resulting in exponential population growth over generations. This observation formed the basis of his theory of natural selection as a mechanism for evolution.
What is the name for the process in which the organisms best adapted to their environment survive?
Its NaTuRaL sElEcTiOn if you didn't know.
Which statement about the members of a populations living long enough to reproduce is consistent with the theory of natural selection?
According to the theory of natural selection, members of a population that possess advantageous traits are more likely to survive and reproduce, thereby passing those traits on to the next generation. This means that individuals who are better adapted to their environment will have higher reproductive success. Over time, these beneficial traits become more common in the population, leading to evolutionary change. Thus, survival and reproductive success are key components of how natural selection shapes populations.
On the galapagos islands Charles Darwin observed?
On the Galapagos Islands, Charles Darwin observed unique species of birds, tortoises, finches, and marine iguanas. These observations contributed to the development of his theory of evolution by natural selection.
What was Darwin's overall conclusion regarding natural selection?
That selection was natural.
Which does natural selection affect populations or individuals?
Populations evolve, but individuals are selected. Natural selection affects individual organisms.
What does natural selection only act on?
It acts on populations.
Which of the following is the most powerful evolutionary force in large populations over time?
Only natural selection could be the answer here as natural selection is the main driver of adaptive change leading to evolutionary change and speciation in large populations.
Does natural selection require small population size?
No. Natural selection works in all populations. However, new alleles spread more slowly in large populations; the large size has a stabilizing effect. So one should expect large populations to change more slowly than smaller populations.
What will produce adaptive changes in populations?
Natural selection
Is natural selection happening in human populations?
To a very low extent, yes.
How have animal populations changed over time?
Charles Darwin Theory of natural selection
What causes populations to complete?
Compete? The need to be a moron. Complete? The lack of natural selection.
What is natural selection and how does natural selection evolution?
A simplified explanation. Natural selection is the nonrandom survival and reproductive success of randomly varying organisms who by this reproductive success change the allele frequency over time in populations of organisms, which is evolution.
What characteristic within populations cause natural selection to occur?
Genetic variation. If there were no variation in the genes/phenotype then natural selection would have nothing to select from.
Natural selection causes changes in populations of organisms not individual organisms because?
differential reproductive success caused by genetic variation is necessary for the process of natural selection.
Explain how the process of natural selection results in populations of bacteria that are not harmed by antibiotics?
The process of natural selection results in populations of bacteria that are not harmed by antibiotics because bacteria that are born with mutations that make them immune to antibiotics will be the ones to survive and reproduce.
