The answer is cell membrane.
The dependent variable is the mood of the participants.
The study aims to assess how the level of exercise (measured by the amount of time spent) affects another variable, that, in turn, will be the dependent variable: the mood of the participants. The aim of the study is to conclude whether it is possible or not to infer causality between those two, in other words, to see whether different levels of exercise (<em>the cause</em>), trigger the emergence of different types of mood (<em>the effect</em>).
Answer:I think music, drama or art should be electives so that students can have a choice based on what they are good at , this will be positive and motivational to the students
Explanation:
What are the advantages ?
Art , music and drama challenges the students to be creative and venture out of the ordinary ideas as they create portraits or compose music or learn to play musical instruments.
It challenges them to think critically which can develop them even personally.
Students who want to see themselves in the entertainment industry get an early training that prepare them in advance so that they can be aware of any challenges that are there.
It can also preoccupies the students with the fresh and new ideas and may help them focus in school as their critical thinking get improved .
Disadvantages
Eventhough there are many advantages that can be mentioned about studying art or drama and music all of these are based on talents and not everyone is good at them which is the reason they should be electives so that students who are good and passionate about these can benefit.
Answer:
Spain wanted to defend/protect their territory from foreign countries.
