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What are the three patterns of of natural selection?
The three patterns of natural selection are directional selection, stabilizing selection, and disruptive selection. Directional selection favors individuals at one extreme of a trait distribution, stabilizing selection favors the intermediate phenotype, and disruptive selection favors individuals at both extremes of a trait distribution.
When individuals at only one end of a bell shaped curve of phenotype frequencies have high fitness the results is?
Directional Selection.
What selection favors organisms with phenotypes that are at one extreme rlative to the average phenotype?
Directional selection favors organisms with phenotypes at one extreme relative to the average phenotype. This occurs when individuals with traits at one end of a spectrum have higher fitness, leading to a shift in the population towards that extreme phenotype.
In a population of horses an extreme phenotype is favored and the distribution of genes in that population shifts toward that phenotype What is the process called?
The process is called directional selection, where one extreme phenotype is favored over others in a population, resulting in a shift in the frequency of genes towards that phenotype over generations.
What do stabilizing selection directional selection have in common?
They both decrease genetic variation .
What kind of natural Selection would eliminate one extreme?
Directional selection
Is directional selection considered a random change?
Directional Selection is a more extreme form of the trait is favored. Ex. Flamingoes with longer legs and necks. Punctuated Equilibrium is sudden changes, then long periods without change- may be a combination of both.
When selection causes the frequency of a particular trair to move in one direction?
Directional Selection
what do stabilizing selection and direction and directional selection have in common?
They both decrease genetic variation .
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.
The observation that there is a gradual decrease in body size when a population faces long-term food scarcity is an example of what?
Disruptive selectionNatural selection . Stabilizing selection. Directional selectionthe answer is one of these idk which one
Where did the peppered moth population adapt?
Directional Selection
