Answer:
B. Cross-Sectional
Explanation:
A Cross-sectional study of design is a kind of design of observational study . In the cross-sectional study, an investigator measures or examines the outcome as well as the exposures in any study participants at the same time.
Cross-sectional design research includes using some different category of the people who differ in some variable of interest but they share few other characteristics, like educational background, socioeconomic status and ethnicity.
A Cross-sectional studies are mostly used by experimenters or researchers to study the developmental psychology in humans.
Thus in the context, the researcher using 50 participants to study the developmental changes in their choices to listen to music is a type of cross sectional research design.
Hence the correct option is (B).
Answer:
1. Taking care of these systems would ensure smooth cellular metabolism.
2. It would reduce the risk of heart diseases.
3. It would help in the maintenance of the right pH for the blood.
4. It would allow for the easy removal of the waste products from the body.
Explanation:
The respiratory system refers to the series of processes that begin with the inhalation of air and its movement across the blood vessels and eventual discharge from the body. Oxygen which is a very important gas needed to sustain life is inhaled during respiration. It is also circulated through the circulatory system to the cells and tissues that need it.
Taking care of these systems through exercise, rest, and eating the right foods will protect us from diseases that affect them such as Heart attack. Cells would also function well and not die easily because they can access the oxygen needed for them to thrive. The right balance of these gases would also ensure that the proper pH of the body is being maintained.
According to the insurance code of California, the license number of a licensee should be printed at the same size as the fax number, phone number, or address of the licensee on all business cards, printed materials, and price quotes.
