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Katarina [22]
3 years ago
12

Which term best describes a pure substance that is made up of only one type of atom

Biology
1 answer:
svetoff [14.1K]3 years ago
3 0

Element describes a pure substance that is made up of only one type of atom. Elements cannot be broken down into more simpler substances. There have been 118 elements discovered by scientists so far. 

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Anastaziya [24]

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....I started from where you ended....

friction

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Explanation:

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What is at least one reason why science cannot help to answer ethical or moral social issues?
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Because what we do comes down to our own conscious and moral values. Also everyone responds to situations differently
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In Wisconsin, a very large population of lake trout, in which individuals mate at random, experiences no migration, mutations, n
chubhunter [2.5K]
In this population, what will occur is that there will be no evolution. Mutation is neccessary and important because they provide varitations that can result in evolutionary change. Other factors needed for evolution to occur are migration and selective pressure.
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4 0
3 years ago
When doing blood testing for a viral infection, the procedure can be made more efficient and less expensive by combining partial
Papessa [141]

Answer:

The best way to approach this type of problem is to use the "complement method" ...  

P(positive result) = 1 - P(negative result)  

= 1 - (1 - 0.03)^3  

= 1 - 0.97^3 = 0.087327 or 8.7%  

Explanation:

7 0
3 years ago
Read 2 more answers
The trait for red hair is recessive, meaning that when a person expresses two copies of this allele they have red hair. what can
AlekseyPX
Let "r" stand for the recessive red hair trait. A person with red hair must have a genotype of "rr" ( one from each parent) in order to have red hair( red hair being the phenotype).

Let "B" stand for brown hair and "b" stand for not brown hair. A person with brown hair can have a genotype of "Bb" or "BB" and have a phenotype of Brown hair. This is becasue brown hair "B" is the dominant trait.
5 0
4 years ago
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