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Structure in a chromosome that holds together the two chromatids
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They bring dissolved nutrients to the surface of the ocean. They decrease the levels of oxygen at the surface of the ocean. They decrease the amount of nutrients at the surface of the ocean.
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Gold
Gold is a non renewable resource.
Explanation;
Non renewable resources are those resources of economic value that can not be readily replaced by natural means on a level that is equivalent to its consumption.
Examples of non renewable resources include; fossil fuels such as oil, natural gas and coal; because their source is not sustainable.
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there is no quiz
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i have not seen the question
Answer: Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes.
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