<h3>Internal resistance</h3>
<em>Internal resistance refers to opposition to flow of current offered by </em><em> cells and batteries themselves resulting the generation of heat. Internal resistance is measured in Ohms. </em>
<h3><em>tq</em><em> </em><em>hOpE </em><em>it</em><em> </em><em>helps</em><em> </em></h3>
Answer:
<em>398 deaths were caused by Alzheimer.</em>
Explanation:
Proportionate mortality rate (PMR) gives the proportion of deaths in a given population over a period of time, this can be linked to various causes.
Mathematically PMR is reoresented below;
PMR =
X 100
where
= No. of death from a specific cause (In our case Alzheimier )
= Total No. of death at a given period
from the question the parameters were given except the number of death from Alzheimier
1.87 =
multiply both side by 21,270 to isolate 
= 1.87 x 21,270
Divide both side by 100 to obtain 
= 
= 397.749
since dead people can not be divided
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<em> </em>
Genes. Genes are what you get from your parents, proteins are what you get from eating meat, codons are basically the stuff in genetic codes and base pairs make up your DNA. :)