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A Stress on a Biological Organism, over time and, an overall balancing this stress, that isn't normally taken care of, by regular day to day, equalizations.

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Q: What are the key requirements for evolution to occur?
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A key concept in the modern theory of evolution explains?

how variations occur within a species


What is the key component of evolution?

The key component of evolution is reproduction of the species.


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.


How are organisms related to evolution?

Organisms are required for evolution to occur. Evolution is defined as something that happens when organisms reproduce.


What is descent with modification?

Descent with modification encapsulates the two key ideas central to the theory of evolution. These are that modifications (mutations) occur, and that these mutations are inheritable (passed on to descendants or offspring).


Does evolution occur in individuals or in population?

Evolution occurs in population not in an individual.


Did evolution occur in the permian period?

Yes. Evolution ocurred in all geologic periods.


What are some draw backs of selective breeding?

You do not allow evolution to occur, for you are evolution in selective breeding.


How is variation related to evolution?

The more variation there is in a group of specimens, the more evolution can occur between them.


Why did evolution not occur in down syndrome?

Down Syndrome is a the addition of an extra chromosome and not really related to evolution. It is more of a genetic mutation that causes this event to occur.


For a mutation to affect evolution it must occur in?

For a mutation to affect evolution it must occur in the dominant allele. This allele is what is passed on.