Stabilizing selection is one of three main types of natural selection in evolution. Stabilizing selection is the most common of those processes . ... The result of stabilizing is the over-representation in a specific trait.
Which type of selection is the most likely to result in speciation?
Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation.
Which selection is most common?
The most common of the types of natural selection is stabilizing selection . In stabilizing selection, the median phenotype is the one selected for during natural selection.
In which type of selection is the average favored?
Types of natural selection: Different types of natural selection can impact the distribution of phenotypes within a population.In (a) stabilizing selection , an average phenotype is favored.In (b) directional selection, a change in the environment shifts the spectrum of phenotypes observed.In (c) diversifying selection, ...
Why is stabilizing selection more common?
Stabilizing selection tends to remove the more severe phenotypes , resulting in the reproductive success of the norm or average phenotypes. This means that most common phenotype in the population is selected for and continues to dominate in future generations.
Does stabilizing selection change the mean?
Stabilizing selection reduces the amount of variation in a trait . For example, very small and very large babies are most likely to die, leaving a narrower distribution of birthweights. Disruptive selection increases the amount of variation in a trait.
What could lead to stabilizing selection?
In that way, like all forms of selection, the cause of stabilizing selection is the increased fitness and reproductive success that the median individuals have . The extreme versions or traits have a disadvantage, in one way or another. This disadvantage, in evolutionary terms, is decreased reproduction.
What are the three types of selection?
- Stabilizing Selection.
- Directional Selection.
- Disruptive Selection.
How do you explain natural selection?
Natural selection is the process through which populations of living organisms adapt and change . Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
Is natural selection random?
The genetic variation on which natural selection acts may occur randomly, but natural selection itself is not random at all . The survival and reproductive success of an individual is directly related to the ways its inherited traits function in the context of its local environment.
What is an example of stabilizing selection?
Stabilizing selection in evolution is a type of natural selection that favors the average individuals in a population. ... Classic examples of traits that resulted from stabilizing selection include human birth weight, number of offspring, camouflage coat color, and cactus spine density .
What is a good example of Intrasexual selection?
Intrasexual selection, on the other hand, occurs between members of the same sex. For example, male sea lions compete for dominance over rookeries of females . Here, intrasexual selection acts on the physiology of the sea lion, to make it large enough to compete with other males for a group of females.
How does natural selection cause evolution?
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success . This process causes species to change and diverge over time.
What can natural selection act on?
Natural selection acts on an organism’s phenotype, or observable features . Phenotype is often largely a product of genotype (the alleles, or gene versions, the organism carries).
What are the 3 types of evolution?
Evolution over time can follow several different patterns. Factors such as environment and predation pressures can have different effects on the ways in which species exposed to them evolve. shows the three main types of evolution: divergent, convergent, and parallel evolution .
What are three examples of natural selection?
- Deer Mouse.
- Warrior Ants. ...
- Peacocks. ...
- Galapagos Finches. ...
- Pesticide-resistant Insects. ...
- Rat Snake. All rat snakes have similar diets, are excellent climbers and kill by constriction. ...
- Peppered Moth. Many times a species is forced to make changes as a direct result of human progress. ...
- 10 Examples of Natural Selection. « previous. ...
