Ascientist wants to know if consuming fast food increases obesity in teens. he interviews 500 nutritionists, and 450 of them believe fast food consumed more than once a week increases obesity. the scientist concludes that consumption of fast food increases obesity. why is the scientist's conclusion most likely unreliable? the data about the nutrition of fast food is inaccurate. the results of the investigation cannot be repeated. the survey introduced biased information. very few people were interviewed.

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Coral have a symbiotic relationship with what in order to eat?