Why do scientists use scientific names to describe organisms?

Which characteristics are typical of a human population in the postindustrial stage?

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

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?