Suppose there was a new drug that did an excellent job of maintaining strong connections between neurons. Which of the following would you expect to see if the drug were widely used? O better cognitive function in old age O relief from hormone-related mood swings fewer instances of Down's Syndrome O better response to antidepressants

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.

Which of the following is the scientific term for an organism that makes its food from inorganic materials? a.autotroph b.heterotroph c.embryotroph

Which of these chinese regions is the most densely populated?