Question

1. professor cao mentions several groups in the study. make a list of 5 controlled variables that should be considered for all groups. 10. according to cao, what conclusion did he reach at the end of his experiment? making real world connections (5 pts) 11. tina had been working for several years during regular hours, 8am - 5pm as a clerk. she just got promoted to a better paying job working for the united states postal department. she is excited because the pay is higher and they offer health benefits. in the new job, she will be a manager during the graveyard shift, 11pm to 7am. how will tina be affected by the new schedule? using both papers, support your statement by using the text and highlighting it with two different colors. be sure to back up your statements by paraphrasing or quoting the two papers. for example: according to dr. lopez, in the article titled cancer linked to stress, he mentions that patients with high levels of stress have a 4 out of 10 chance of developing cancer vs patients with low levels of stress, who have a 2 out of 10. minimum 4 sentences.

Explanation:

1. Controlled variables are factors kept the same across groups in an experiment to isolate the effect of the independent variable. Besides the ones already written (same species, same age, same - size tank), others could be same temperature, same light conditions, same diet, same humidity (if applicable), and same starting health condition.
2. Without information about the experiment's content, it's impossible to determine the conclusion.
3. Working the graveyard shift can disrupt the body's circadian rhythm, leading to sleep - related issues, increased stress, and potential health problems. According to research on shift - work and health, such disruptions can increase the risk of cardiovascular diseases, obesity, and mental health issues like depression and anxiety. Tina may experience fatigue, difficulty concentrating, and social isolation as her work schedule is opposite to the normal day - time routine. She may also face challenges in maintaining a healthy lifestyle due to irregular meal times and limited opportunities for exercise during traditional waking hours.

Answer:

1. Same temperature, same light conditions, same diet, same humidity, same starting health condition
2. No answer possible without more context
3. Tina may experience sleep - related issues, increased stress, fatigue, difficulty concentrating, social isolation, and challenges in maintaining a healthy lifestyle.