As the human population grows and countries continue to develop, the demand for large fish has been steadily increasing. Unfortunately, the average size of the cod has decreased because the fishing nets were
designed to catch the large fish and the smaller individuals could escape more easily.
What is most likely happening to the genetic variation of the population of North East Arctic Cod?
The genetic variation in the population is increasing due to selective pressure.
The genetic variation in the population is decreasing due to selective pressure
The genetic variation in the population is increasing due to gene flow.
The genetic variation in the population is decreasing due to gene flow.

It’s b on edgenuity Cumulative exam review

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.