When nothing happens to exert strong population pressure on that population, natural selection favors the allele frequency already present. When mutations cause new traits, natural selection weeds these traits out because they're not as efficient as the others.
Populations evolve, but individuals are selected. Natural selection affects individual organisms.
Natural selection (the driving force of evolution) is the selection of genetic variations by how they effect the organism's chances of survival or reproduction. If they diminish it's chances, the organism or it's immediate offspring die and the gene is gone. If the genetic variations increase it's chances, then it survives. Without genetic variations there can be no evolution. Natural selection is the selection (by environmental pressures) of those variations.
Variation naturally occurs in populations as new traits arise from random mutations. However, through natural selection only those traits that are beneficial to the organism are passed on to the next generation. Any harmful mutations are naturally weeded out.
Environmental factors can determine the costs of running some businesses and affect the public's perception of a business. Companies need to minimize their pollution to avoid negative publicity.
Ivestigate sounces of environmental abuse and the affect it has had or will have on people.
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Natural selection works on mutations that are already in place. The environmental changes will select for certain mutations if the selective pressure is supplied long enough for several generations of offspring to carry a higher percentage of the mutation.
Some factors that can affect the process of natural selection include mutation rate, genetic diversity within a population, environmental changes, competition for resources, and presence of predators. These factors can influence which traits are favored or selected for in a population over time.
Organisms are affected by Natural Selection because Inherited characteristics affected the likelihood of an organism's survival and reproduction.
natural selection is basiclly only the strong survive which means it effects the weak by killing them but bernifits the strong
Genetic variation provides the raw material for natural selection to act upon, allowing for adaptation to changing environmental conditions. Environmental factors can influence which traits are favored, leading to certain genetic variants becoming more prevalent in a population over time through natural selection. This process drives evolutionary change as individuals with advantageous traits are more likely to survive and reproduce, passing on their genes to the next generation.
Natural selection is the process which determines the shark's evolution. It is humankind that is threatening the sharks' survival.
Populations evolve, but individuals are selected. Natural selection affects individual organisms.
Evolution by natural selection is currently the only viable theory explaining the diversity of life. However, the mechanism of natural selection is not the only mechanism to affect evolution. There are phenomena such as genetic drift, biased gene conversion, intragenomic conflict, and so on, that aren't exactly the same as natural selection (although they are all intertwined and all affect one another), but do affect the direction of evolution.
Adaptation for stronger shells.
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How does natural selection affect undesirable traits?