What purpose does simultaneous contrast serve?

So my science teacher said anything that makes noise can in a way make music, instruments make music, and mayonnaise makes sound. so i have a question, do not report. is mayonnaise a instrument?

Idon’t know if the answer are right. ❤️

Afruit fly is heterozygous for both eye color and wing length (eeww). e is dominant for yellow eyes. e is recessive for white eyes. w is dominant for long wings. w is recessive for short wings. what would most likely be the distribution of phenotypes that this fruit fly could pass on in its gametes?