Please help!! Recently a scientist decided to repeat this study, but relocated a population of sticklebacks from a freshwater environment into a marine environment.
Which of the following best predicts how
the frequency of the allele would change over time if a population of stickebacks from a freshwater environment was placed into a marine environment?

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis

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 was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?