Which of the following defines a constant? What happens because of what was added or changed in the experiment
All things that are kept the same in an experiment
What is added or changed in the experiment
Those that were left alone in the experiment or was set as the standard

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.