The main reason that it's important to test only one variable at a time is so that

Models are non-visual ways of coummincating how someone thinks about something in the natural world

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel

Select all that apply genes are specific nucleotide sequences occur in numbers that are the same as the number of chromosomes are located in a specific place on a chromosome determine the traits of an organism are units of rna