Which of the following represents a good, controlled experiment?
frank hypothesized that warmer temperatures would make his tomatoes produce fruit sooner. he gathered 50 tomato plants and put them in identical pots. he raised the temperature in the tomato room and watched to see when they would produce tomatoes.

He chart shows the 112th u. s. congress (2011–2012). based on the information in the chart, if the independents in the senate chose to vote with the republicans in the senate, the republicans would

In a study, people were asked to imagine simple occasions that made them happy and to remember events that made them feel proud about themselves. it was observed that the subjects developed an increasingly positive attitude. these changes are known to be healthy, leading to greater physical activity and reducing unhealthy habits. based on this excerpt, we can conclude that a positive attitude .

When a government has total control over its citizens, including the media, it is a of government question 2 options: constitutional monarchy parliamentary democracy autocracy presidential democracy