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The two main factors are mutation and natural selection.
Mutations are random changes in our DNA that cause changes. Some of these changes are bad, some are neutral, and some are good.
This is where natural selection comes in. If the mutation is bad, then that organism is less likely to mate and pass down the gene. The organism dies along with the mutation that made it less fit. If it is neutral, which is what most mutations are, then nothing happens. If it is good, then the organism is more likely to survive and pass down the gene which will then propagate through the species.
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What four factors can cause evolution to occur?
1.) Mutation 2.) Selection 3.) Gene Flow 4.) Genetic Drift
Why can mutation affect evolution?
Mutation is the cause of evolution. Mutation is what creates differences in individuals within a species, leading to diversion. Then "survival of the fittest" can occur.
How may natural selection be able to cause evolution to occur?
By selecting the variant organism most suited to the environment the alleles of the population then change in frequency over time and thus evolution occurs.
Does Evolution occur slowly?
yes.
What are six factors of macroevolution?
I'm not sure that there exists such a thing as "factors of macro-evolution". Macro-evolution is simply what happens when reproductively isolated populations continue to diverge as a result of micro-evolution. They drift apart genetically, behaviourally and morphologically, so that the differences between them become greater and greater. The mechanisms that cause this are reproductive variation and differential reproductive success, the principal mechanisms of evolution.
What four factors can cause evolution to occur?
1.) Mutation 2.) Selection 3.) Gene Flow 4.) Genetic Drift
What are the four ways evolution?
These four factors can effect ways evolution occur: 1.) Mutation 2.) Selection3.) Gene Flow4.) Genetic Drift
Why can mutation affect evolution?
Mutation is the cause of evolution. Mutation is what creates differences in individuals within a species, leading to diversion. Then "survival of the fittest" can occur.
What are the factors that cause breezes to occur?
The high latent heat of water.
What two factors would cause mitosis to occur in an onion plant?
Water and light
How may natural selection be able to cause evolution to occur?
By selecting the variant organism most suited to the environment the alleles of the population then change in frequency over time and thus evolution occurs.
Does Evolution occur slowly?
yes.
Why are adaptations evidence of evolution?
Because adaptations are an observed effect of evolution. They could not happen if evolution did not occur.
What are six factors of macroevolution?
I'm not sure that there exists such a thing as "factors of macro-evolution". Macro-evolution is simply what happens when reproductively isolated populations continue to diverge as a result of micro-evolution. They drift apart genetically, behaviourally and morphologically, so that the differences between them become greater and greater. The mechanisms that cause this are reproductive variation and differential reproductive success, the principal mechanisms of evolution.
What factors cause many different ecosystems to occur on the same continent?
different weather and different organisms
How are organisms related to evolution?
Organisms are required for evolution to occur. Evolution is defined as something that happens when organisms reproduce.
What are evolution of family therapy?
factors that influence evolution of family therapy
