You want to see if mold grows faster on bread in the shade than on bread in the sun. your experimental variable is

The correct answer is "THE SUN". I just completed the lesson so I know for a fact that this is the answer, I hope I helped!

There seemed to be a lot of confusion with this question so I felt I had to verify.

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.