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Why is variation overproduction adaptation and descent necessary for natural selectoin?
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What affects natural selection?
variation,overproduction, and competition
What are four limitng factors of natural selection?
the factors that are necessary for natural selection by evolution to occur are: 1)variation in characteristics;different individuals in a population must have different characteristics. 2)differencies in fitness different characteristics of different individuals must contribute to differences and fitness. 3)heritability of characteristics characteristics that affects fitness must be heritable.... example:passed by genes from one generation to the next)
Why is phenotype variation necessary for natural selection and sexual selection?
It is necessary to create a full and varied species.
Which of these is necessary for natural selection to occur genetic engeneering genetic variation asexual reproduction or enviormental stability?
Genetic variation
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 the four steps of Darwin's theory of evolution by natural selection and examples?
Overproduction, variation, selection, and adaptation
What affects selection?
variation,overproduction, and competition
What affects natural selection?
variation,overproduction, and competition
What are four limitng factors of natural selection?
the factors that are necessary for natural selection by evolution to occur are: 1)variation in characteristics;different individuals in a population must have different characteristics. 2)differencies in fitness different characteristics of different individuals must contribute to differences and fitness. 3)heritability of characteristics characteristics that affects fitness must be heritable.... example:passed by genes from one generation to the next)
What are the four parts of Darwin's theory of natural selection?
Overproduction, genetic variation, selection, and adaption
How is genetic variation important to natural selection and adaptation?
identical
What may a series of helpful variation in a species result in?
Adaptation
The degree of adaptation that can occur in a population is limited by?
the amount and kind of genetic variation in a population
What is a synonym for adaptation?
acclimatization, naturalization, conversion, variation, change, adjustment, transformation, modification, alteration
What idea is supported by Darwin's observation of local variation among toritoises in the galapagos islands?
adaptation
What are the guide words for adaptation?
The guide words for adaptation are change, adjustment, evolution, and modification.
What is necessary for the formation of a new species?
Reproductive variation.
