Psychologists use a systematic method in research in order to eliminate subjectivity and allow for consistency across studies. This is to ensure that data is tested and recorded in the most objective way possible as well as ensure that psychologists are defining and measuring psychological concepts and behaviors in the same way.
No, only doing crunches will not help. You will have to do a variety of excercises to help lose weight around the belly. A good example of excercises that will help you lose weight would be cardio excercises.
Answer: Parasites
Explanation:
Both tapeworms and lice depend on a living host to survive. The relationship between the parasite, tapeworm or lice, isn't mutual. The parasite only benefits from the relationship, because the host provides them with plenty of nutrients. In some cases, tapeworms and lice can carry diseases and infect the host. So, there is your answer and goodluck!