Which of the following most accurately describes the term epidemiology?

a. a test made to examine the validity of an educated guess
b. an educated guess by a scientist to explain a phenomenon
c. a study of how disease rates vary among different population groups
d. an explanation for a phenomenon that has numerous lines of evidence to support it

c) A study of how disease rates vary among different population groups

Explanation:

Epidemiology is the systematic and scientific study of the distribution of the health-related issue in a specified population.

The Epidemiologists studies the disease and its cause in a population by the collection of the data which gives an insight in the distribution of the health issues in the population living from a small area like school to a country.

The epidemiological studies help the society by reducing the risk of the negative health outcomes, in spreading awareness about the health issues and in framing the health policies.

Thus, Option-C is the correct answer.

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.