Musicians who are auditioning for a spot in an orchestra are typically placed behind a screen when they play for the judges. In scientific terms, what is this practice trying to avoid?

1. red- the color of blood

2. black- the color of the darkness in my soul

3. white- the color of the clouds

4. orange- a fruit

5. blue- the color of water

for those of you who searched "which list includes four types of animal-like protists? " and keep getting these results, the answer is c: flagellates, sarcodines, ciliates, parasites