Answer:
There are four species within the genus Shigella: Shigella dysenteriae, Shigella flexneri, Shigella boydii, and Shigella sonnei.
Explanation:
Answer:
produce sound when they come together and then vibrate as air passes through them during exhalation of air from the lungs. This vibration produces the sound wave for your voice. In order for the sound to be clear and not raspy or hoarse, the vocal folds must vibrate together symmetrically and regularly
Explanation:
Answer:
increase blood pressure
Explanation:
stimulants speed up your heart rate which can causes increased blood pressure
Are you Christian?
Have a beautiful and joyful day ahead.
Answer:
b. ex post facto or quasi-experimental.
Explanation:
An ex post facto search is done when a researcher cannot manipulate one of the variables such as sexual behavior or smoking (as described in the question), ie this type of research is done when it is not possible to manipulate the independent variables as they already arrive ready for research. Ex-post fact research deals with variables that are unmanipulated in nature. Quasi-experimental research can also be done for this same situation.
