Answer:
The correct answer is - option A. A difference in the cultural display rules.
Explanation:
Social or cultural displays rules are a social cluster or group and informal cultural norms to express their emotions in the correct way which are specific to cultural or social groups.
Pedro is an exchange student which makes his social norms different than the social norms or cultural display rules which cause difficulties to deal with the people and classmates.
Answer:
Diffusion
Explanation:
Diffusion is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space.
Answer:
A. Hemodialysis
Explanation:
Hemodialysis is the method or process of using a dialysis machine (a special machine) to clean the blood.
This is done by doing a minor surgery on the patient to get the blood into the dialyzer.
This dialysis machine does the work a healthy kidney would do.