The figure below shows an experiment on photosynthesis. Rebecca observed that the part of the leaf outside the bottle showed the presence of starch in it. The part of the leaf inside the bottle did not show the presence of starch.
When the same experiment was repeated without potassium hydroxide (KOH) in the bottle, the whole leaf showed the
presence of starch.
KOL
KOH
Water
What can Rebecca correctly infer about potassium hydroxide?
SC 912. L.18.9
It absorbs carbon dioxide
It releases oxygen
It produces water
It dissolves cells

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.