Answer:
Cross- sectional
Explanation:
A cross-sectional study can be explained as a type of observational research that analyzes data of variables collected at one given point in time across a sample population or a pre-defined subset.
It involves the use of different groups of people who differ in the variable of interest but share other characteristics, such as socioeconomic status and educational background.
In conclusion, it should be understood that, Cross-sectional studies are usually relatively inexpensive and allow researchers to collect a great deal of information quite quickly, but still show individual character.
Answer:
it is for normal growth and development
Answer: Gram staining method. MacConkay agar.
Explanation: Gram staining is a differential media. It is used to differentiate between gram positive and gram negative organisms.
Pseudomonas aeruginosa can be isolated from samples via an enrichment procedure. It is confirmed through use of selective and differential media
Staphylococci are catalase positive organisms. Catalase-positive cultures bubble immediately.
Depending on when you get up for school the average time a teenager should get to sleep is somewhere between 9-14 hours so just make sure you get a proper amount of sleep