Answer: Answer below
Explanation: pH is a measure of the acidity or alkalinity of a solution. What the pH scale measures is basically the concentration of hydrogen and hydroxyl atoms in a solution. So, the last option is the answer. Another thing to keep in mind is solutions with a pH under 7 are acidic, solutions with a pH of 7 are neutral, and solutions with a pH over 7 are alkaline or considered a base. I hope this helped! Good luck:)
Complex sugars are called
C. Polysaccharides
Genetic drift I believe because it means <span>variation in the relative frequency of different genotypes in a
small population, owing to the chance disappearance of particular genes
as individuals die or do not reproduce.</span>
D is false and yeah I need extra words so here they are
Answer:
Option C “the reason the data are collected”
Explanation:
The epidemiology studies based on four criteria for utility of data are
1-Nature of data
2-Availability of the data
3-Completeness of data and
4- value and limitation.
Value and limitation of data means that some factors may limit the data usefulness like incomplete information or repetition and duplicate data while Nature of data means the data source which affect the statistical analysis. Availability of data means the presence or access of data to investigators.
