13 A student studied the location of single-cell
photosynthetic organisms in a lake for a period of
several weeks. The depth at which these
organisms were found at different times of the
day varied greatly. Some of the data collected are
shown in the table below.
Data Table
Light Conditions
at Different Times of
the Day
Full light
Moderate light
No light
Average Depth
of Photosynthetic
Organisms (cm)
150
15