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Being in a population is what causes interactions between an organism and another. So it's the interspecific (between different species) and intraspecific (between the same species) interactions that cause evolutionary pressure. The main types of interactions are competition, mutualism, and parasitism. If the organism were just in a world by itself, it would have absolutely no need to evolve. That's because it would be able to get all the food and resources it needs and wants. So again, it's the interaction between organisms that really counts.
What else can I help you with?
What does evolution mean in science?
Evolution is the gradual change of a population in response to changes in the environment. Evolution does not occur in individuals, it can only occur when a mutation is added to a population or a certain gene is selected for. Evolution occurs because the fittest individuals who pass their genes on the most are the ones best suited for the environment. Those that don't survive don't pass on their traits. It is important to note that fitness described in survival of the fittest pertains to reproductive fitness, not physical fitness.
What is evolution and why does it happen?
Evolution is when a species develops and diversifies at the genetic level to better fit it's environment . Evolution is natural , and occurs so species can survive . Scientifically speaking , when the earth was created , there were only single-cell bacteria around . If they hadn't evolved , they probably wouldn't have survived the ice age , etc .
What is evolution and can you provide an example to explain the term?
Evolution is the process by which living organisms change and adapt over time through natural selection. An example of evolution is the development of antibiotic resistance in bacteria. When exposed to antibiotics, only the bacteria with genetic mutations that make them resistant survive and reproduce, leading to a population of bacteria that is mostly resistant to the antibiotic.
Which statement is more accurate to scientist the evolution of a single individual organism or the evolution of a whole species?
Single individuals are naturally selected, but populations ( can be whole species ) evolve. Any mutation happening in the germ line of an individual will die with him. Only his progeny can inherit said mutation and evolve. Evolution is the change in allele frequency over time in a population of organisms.
Does somatic mutation contribute to evolution?
No. Only germ line mutation can be passed on. Somatic mutations die with the organism that processes them. The change in allele frequency over time in a population of organisms, evolution, can not take place if the alleles can not get onto the population through the organism having progeny; the result of germ lines.
What is meant by the statement Populations evolve individuals don't?
This statement refers to the fact that evolution occurs at the level of populations over generations, with changes in allele frequencies leading to evolution. It emphasizes that individual organisms do not evolve within their lifetimes, as they do not change genetically, but rather it is the population as a whole that evolves.
Compare and contrast natural selection and evolution?
Natural selection is the most powerful driver of evolution and it is the only mechanism of evolution ( genetic drift and gene flow are two other mechanisms ) that leads to adaptive change. Natural selection is the nonrandom survival and reproductive success of of randomly varying organisms. Evolution is the change in allele frequency over time in a population of organisms.
Define evolution at the population level?
Evolution at the population level refers to changes in the genetic composition of a group of interbreeding individuals over successive generations. It involves processes such as natural selection, genetic drift, gene flow, and mutation that result in shifts in the frequency of different genetic variants within a population.
Is it true that acquired characteristics lead to evolution?
Evolution is the change in allele frequency over time in a population of organisms. Alleles are different molecular forms of the same gene and when their frequency changes in a population it indicates " hard " inheritance has taken place; the only type of inheritance that leads to evolution. Building bigger muscles during you lifetime can not pass the bigger muscles on to your progeny, thus mo evolution in any population.
What does evolution mean in science?
Evolution is the gradual change of a population in response to changes in the environment. Evolution does not occur in individuals, it can only occur when a mutation is added to a population or a certain gene is selected for. Evolution occurs because the fittest individuals who pass their genes on the most are the ones best suited for the environment. Those that don't survive don't pass on their traits. It is important to note that fitness described in survival of the fittest pertains to reproductive fitness, not physical fitness.
WHAT Processes occurs only in organisms that reproduce sexually?
The process of meiosis.
What is essnetial to evolution?
Genetic and morphological variation. Without variation in organisms there would only be the shifts of genetic drift and gene flow in organisms. When organusms are varied then one can be selected from the other by the environment and the organisms ability to reproduce against that environment. Then there is evolution.
What are the organs involved in respiring?
respiration occurs in all organisms,(except bacteria) but photosynthesis only occurs in plants.
Do any qualified scientists support evolution?
The vast majority of scientists support evolution. There is no longer any debate in the scientific community about whether evolution occurs, only the mechanisms in which evolution acts upon is debated.
What is evolution and why does it happen?
Evolution is when a species develops and diversifies at the genetic level to better fit it's environment . Evolution is natural , and occurs so species can survive . Scientifically speaking , when the earth was created , there were only single-cell bacteria around . If they hadn't evolved , they probably wouldn't have survived the ice age , etc .
What is evolution and can you provide an example to explain the term?
Evolution is the process by which living organisms change and adapt over time through natural selection. An example of evolution is the development of antibiotic resistance in bacteria. When exposed to antibiotics, only the bacteria with genetic mutations that make them resistant survive and reproduce, leading to a population of bacteria that is mostly resistant to the antibiotic.
Which statement is more accurate to scientist the evolution of a single individual organism or the evolution of a whole species?
Single individuals are naturally selected, but populations ( can be whole species ) evolve. Any mutation happening in the germ line of an individual will die with him. Only his progeny can inherit said mutation and evolve. Evolution is the change in allele frequency over time in a population of organisms.
