To make the risk of getting cancer again and not surviving clear to everyone
Answer:
When burned, coal produces pollutants that are released into the air.
Explanation:
This is the only negative implication and the question mentions a 'cost' which implies a negative connotation or tradeoff when coal is used a energy source.
Answer:
a. can produce many exact copies of segments of DNA
Explanation:
PCR refers to polymerase chain reaction that replicates a gene or a DNA segment into multiple copies. For the purpose, primers, the sample DNA template to be amplified, nucleotide monomers and the heat-tolerant DNA polymerase enzyme (<em>Taq </em>polymerase) are mixed.
The heating of the mixture leads to the denaturation of the sample DNA. The mixture is cooled down to allow annealing of the primers to the DNA template which is then amplified by the enzyme <em>Taq</em> DNA polymerase. The reaction mixture is heated to allow denaturation of all the DNA molecules which in turn serve as a template and the process is repeated for several rounds according to the requirement of the copies of the sample DNA.
Answer:
<em>Water will move out of a cell.</em>
Explanation:
A hypertonic solution will have higher solute concentration and lesser solvent concentration. If a cell is placed in such a solution, then the concentration of the solvent will be more inside of the cell as compared to outside of the cell. As a result, the solvent will move out of the cell. If an excess of solvent is lost, the cell might shrink to dangerous levels.
Hence, from the above description we can justify that water will move out of a cell which is placed in a hypertonic solution.
