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Why is variation important for natural selection and what are the main sources of this variation?
Without variation natural selection would have nothing to select from that would confer survivability and reproductive success. on the organisms being selected against the organisms conspecifics and the immediate environment.
Mutation and sexual recombination provide the main sources of this variation that is needed to make selection work. Mutation is the variation presented that causes the real adaptive change that can lead to speciation.
What else can I help you with?
What are the natural sources of heat?
the earth interior
Some sources for energy are called alternative sources. To what sources of energy are they an alternative?
Alternative energy sources are typically alternatives to fossil fuels, such as coal, oil, and natural gas, which are conventional energy sources. They include renewable options like solar, wind, geothermal, hydroelectric, and biomass energy. These alternatives aim to reduce greenhouse gas emissions, decrease dependence on finite resources, and promote environmental sustainability. By harnessing natural processes, alternative energy sources provide cleaner and more sustainable energy solutions.
5 non renewable energy sources?
Coal, oil, natural gas, uranium, and geothermal
Why do scientists identify sources of error in their experiment?
this is important to be her formula is correct.
How are natural selection and adaptation related?
ADAPTATION- It is the change in the physical appearance and/or the physiological characteristics of an organism upon exposure to different conditions of environment generally the harsher ones ( such as temperature, radiations and the nutrient sources ) . Gradually the immune system of an organism gets acquainted to the new environment and hence it is said to be adapted.VARIATION- The transmittance of the adaptation to off springs results in new family of a species known as variants . The phenomenon of the generation of a new variant of a species is known as variation .ADAPTATION is the source of VARIATION.For examples if you look at the various breeds of canines ( dogs) in the world, they vary though they belong to the same species , this is because of their adaptation to the different prevailing climatic conditions.The transfer of adapted features such as longer furs (canines in cold climates) and the modified hooked beaks in birds is due to the transfer of adapted traits from the parents to off springs through the vehicles of heredity known as DNA .The passing on of the adapted traits to the off springs i.e. variation over an observed period is called as the EVOLUTION of a new variety or EVOLUTION .
What is the signifiance of the genetic variation and natural selection?
Genetic variation is important because it allows for diversity within a population, which increases the chances of survival in changing environments. Natural selection acts on this variation, favoring traits that increase an organism's fitness and leading to adaptation and evolution over time.
Is natural selection a source of variation within species?
No, natural selection does not create variation within a species. Instead, natural selection acts on existing variations within a population, favoring traits that increase an individual's chances of survival and reproduction in a given environment. The variation itself arises from mechanisms such as mutations, genetic recombination, and gene flow.
What two different sources of genetic variation in a plant or animal population?
The main source of genetic variation is a large population with a large gene pool.
What are two sources of genetic variation?
Natural and Artificial Selection
How did Charles Darwin and Alfred Wallace gather information which then led them to formulate the concept of natural selection?
I don't know about Wallace, but Darwin spent a lot of his time in the Galapagos Islands where he saw what he thought was natural selection in action without interference from, or as a response to, outside sources like mankind.
What is a mutation and how does it relate to evolution?
A mutation is a change in the DNA sequence of an organism. Mutations are sources of genetic variation, and they can drive evolution by introducing new traits that may be advantageous, neutral, or harmful in different environments. Over time, beneficial mutations can be selected for, leading to changes in the population and contributing to the process of evolution.
What natural sources of water?
river, rain water, sea water
What are the natural Sources of pure water?
Natural sources of pure water include springs, glaciers, and rainwater. These sources typically have not been contaminated by human activities and provide water that is free from pollutants and chemicals. It is important to note that even water from natural sources may require testing to ensure it is safe for consumption.
What are the two main sources for variation?
Mutation and sexual recombination.
What increases genetic varition?
Genetic variation is a direct results of many sources of genetic material and their unconstrained interaction. The larger the population and the fewer restrictions on how they can be integrated the more diverse the genetic variation. This allows for better natural selection and also reduced the ability of disease from affecting the entire population. The founder effect describes genetic variation in communities established by few people. Inbreeding in small closed communities leads to abundances of recessive ailments. This can be seen in hereditary royal families and closed remote communities.
What are the two main sources of genetic variation and which of them is more common?
The two main sources of genetic variation are sexual reproduction, and mutation. Sexual reproduction is more common.
What are exhaustable sources?
Exhaustible sources are natural resources that can be depleted over time, such as fossil fuels (oil, coal, natural gas) and minerals. These sources are finite and not easily replenished at the rate they are consumed, leading to potential scarcity and environmental impacts when exhausted. It is important to find alternative, sustainable sources of energy to reduce reliance on exhaustible sources.
