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Assume you have a population of people of various genetically influenced heights; they all varied in height potential. They all were raised in an environment that was deprived of basic nutrients and all were somewhat stunted in growth. A person that would have been tall in a normal environment passes on those genes for tallness in his deprived -of -nutrients environment, so his sons/daughters, if properly feed, would grow tall. So you see, natural selection must work on the genetic/individual variation and not variations that are not inherited.
What else can I help you with?
Natural selection can only act upon a certain trait if the trait is?
Heritable, meaning that it can be passed down from one generation to the next through genetic inheritance. Without a genetic basis, natural selection would not be able to change the frequency of that trait in a population over time.
What I a heritable trait that increases individual fitness called?
A heritable trait that increases individual fitness is called an "adaptive trait" or "adaptation." These traits enhance an organism's ability to survive and reproduce in its environment, thereby increasing its fitness. Over generations, adaptive traits can become more common within a population through the process of natural selection.
What Is a heritable trait that confers on an individual a survival and reproduction advantage in its current environment?
A heritable trait that confers a survival and reproduction advantage is camouflage in animals. For example, a moth that matches the color of its environment can avoid predators more effectively, increasing its chances of survival and reproduction. This trait can be passed on to offspring, leading to a population that is better adapted to its surroundings. Over time, such traits can become prevalent in the population through natural selection.
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.
What is natural selection that acts against one type of extreme form of a polyygenic trait to reduce genetic variation and change the average value of a trait within a population called?
Stabilizing selection is the type of natural selection that acts against extreme forms of a polygenic trait to reduce genetic variation and maintains the average value of the trait within a population. It favors the intermediate phenotype, leading to a narrowing of the range of variation for that trait over time.
Natural selection can only act upon a certain trait if the trait is?
Heritable, meaning that it can be passed down from one generation to the next through genetic inheritance. Without a genetic basis, natural selection would not be able to change the frequency of that trait in a population over time.
How does natural selection favor an organism's heritable trait?
Natural selection favors a trait by increasing its frequency in a population. Natural selection is differential reproductive success. If one variant of a trait enables an organism to have and raise more offspring successfully than other variants in a particualr environment, then it will become more common in the population.
What I a heritable trait that increases individual fitness called?
A heritable trait that increases individual fitness is called an "adaptive trait" or "adaptation." These traits enhance an organism's ability to survive and reproduce in its environment, thereby increasing its fitness. Over generations, adaptive traits can become more common within a population through the process of natural selection.
Which trait, if either, is likely to respond to selection?
Traits that are heritable are more likely to respond to selection, as they can be passed down from one generation to the next. Non-heritable traits are less likely to respond to selection, as they are not influenced by genetic factors.
How could this be an advantage to the insects how could this trait have evolved through natural selection?
Well this could be an advantage to the insects because the insects can conceal with the color of the sticks. This trait could have evolved the through natural selection because its a chance of staying alive.
What Is a heritable trait that confers on an individual a survival and reproduction advantage in its current environment?
A heritable trait that confers a survival and reproduction advantage is camouflage in animals. For example, a moth that matches the color of its environment can avoid predators more effectively, increasing its chances of survival and reproduction. This trait can be passed on to offspring, leading to a population that is better adapted to its surroundings. Over time, such traits can become prevalent in the population through natural selection.
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.
What is natural selection that acts against one type of extreme form of a polyygenic trait to reduce genetic variation and change the average value of a trait within a population called?
Stabilizing selection is the type of natural selection that acts against extreme forms of a polygenic trait to reduce genetic variation and maintains the average value of the trait within a population. It favors the intermediate phenotype, leading to a narrowing of the range of variation for that trait over time.
What four conditions must be present for natural selection to result in a difference in reproductive success?
Variation: There must be genetic variation for a particular trait within a population. Inheritance: The trait must be heritable and passed down from one generation to the next. Differential reproductive success: Individuals with a certain trait must have higher reproductive success than those without it. Selection pressure: Environmental factors must exert pressure favoring individuals with the advantageous trait, leading to its increased frequency in the population over time.
Through natural selection a trait that is favorable will become an alternate trait that is less favorable?
more frequent than
What characteristic witin populations causes natural selection to occur?
The characteristic within the population that causes natural selection to occur is that individuals within a given population are not all identical because they vary. The other characteristic that causes natural selection to occur is that some variants are better than the others.
What determines which trait will be passed on to the next generation in the greatest frequency?
natural selection
