Students who study for 7 hours, one hour daily over the course of a week, will perform better than students who cram for 7 hours the night before the exam. The independent variable in this hypothesis is .a. students b. test performance

c. number of hours studied

d. method of studying (spaced or cramming)

d. method of studying

Explanation:

independent variables are what affects the dependent variable. the outcome that you are looking for (test performance) is the dependent variable. what affects the test performance is the change in method of studying, so that is the independent variable.

this disease is :

* endemic (present in a defined area that is a village)

* a bacterial infection (treated with antibiotic)

* communicable by contact (by the hands)

manu-porterage is the most common mode of transmission, it transmits germs from one individual to another via the hands. this concerns infections of exogenous origin.

endemic disease, or endemic disease, refers to a disease that is constantly present in a given population, often tied to a specific geographic origin, as opposed to a pandemic that is not a sporadic disease.

antibiotics are molecules that have the property of killing (bactericidal) or limiting the spread (bacteriostatic) of bacteria.