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olchik [2.2K]
3 years ago
5

Which of the following is an example of chemical weathering

Biology
2 answers:
tia_tia [17]3 years ago
4 0

Plant roots growing through rock

umka21 [38]3 years ago
3 0

oxygen reacting with the mineral in roco

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If a particular strand of DNA is found to be 27% adenine, how much guanine would it contain
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You have 20% of adenine. If you have 20% of adenine than you have 20% of thymine, because the amount of adenine and thymine is equal. 20% plus 20% is 40% of adennine and thymine. From 100% DNA bases subtract 40% and you will get 60%. Then divide this by 2 and you will get 30%. 30% of guanine and 30% of cytosine, because their amounts are equal in the DNA stand.

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2 years ago
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