The predicted answer to the scientific question being investigated is called a what?

Asnail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup.

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

Why do we perceive objects as retaining their brightness under different lighting levels?