I would say the answer is filters. They are responsible for showing entries that contain certain values according to the category you choose. For instance, you sort out the data by the date, when you choose from the filter list a certain date like jan 1, the sheet will be changed and will only show data for jan 1.
Using photosynthesis. They convert sunlight into energy. They eat algae.
The answer is B because It helps plants absorb energy and get their nutrients from the sunlight
