There are 25 individuals in population 1, all with genotype aa, and there are 40 individuals in population 2, all with genotype aa. assume that these populations are located far from each other and that their environmental conditions are very similar. based on the information given here, the observed genetic variation most likely resulted from

Florian discovers a rock that is broken into pieces. each piece has several bands. which type of rock does florian predict these pieces will change into when subjected to heat and pressure? igneous magma metamorphic sedimentary

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.

According to cell theory; which structures carry out the basic function of living things? a. atoms b. organs c. cells b. nuclei