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blagie [28]
3 years ago
5

How many amino acids are common to all living systems?

Biology
1 answer:
ioda3 years ago
3 0
I think only twice but I'm not for sure
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How many mutations (on average) are made in DNA AFTER repairs have been made?​
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Answer:

0.0084

Explanation:

Moreover, when the genes for the DNA repair enzymes themselves become mutated, ... an arsenal of editing mechanisms to correct mistakes made during DNA replication. ... After James Watson and Francis Crick published their model of the ... E. coli divides, each daughter cell will have, on average, 0.0084 new mutations.

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Which organisms develop gills from pharyngeal arches and later develop lungs to breathe on land?
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3rd one

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The most significant greenhouse gas emitted in large quantities by human society is
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The primary and most significant greenhouse gas emitted from human activities is carbon dioxide. Burning of fossil fuels is the major cause of increased carbon dioxide emission.The burning of coal, oil, and natural gas is an important energy source to produce electricity.
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A food handler does not need to worry about time and temperature
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This statement is inaccurate because food handlers need to prepare food at the quickest rate possible. This is to prevent spoilage from happening because the changes in temperature in which the food is exposed has something to do with the development of certain kinds of bacteria that can be harmful to a person's health.
4 0
3 years ago
Question 7
azamat

Answer:

A string is placed under a solution and a crystal grows on the string because the solution is supersaturated.

Therefore, the correct answer to the question is option B.

Explanation:

A saturated solution is defined as a solution in which there is no more space for the solute to be added. All the words in the solution is been filled with the solute which is been added before and mixed well to fill up all the pores. Supersaturated solution is defined as a solution which has a greater number of solute than it was being capable of holding.

As it is clear from the name supersaturated which means more than saturation. And when string is placed under this solution there are some crystal which grows on the strings because of the solute saturation which is being attached to the string.

3 0
3 years ago
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