The table contains data relating the temperature of water to the breathing rate of a fish. which variable would be placed on the horizontal axis (x-axis) of a graph of this data?

The answer to the question presented above would be temperature of the water. The variable that would be placed on the horizontal axis (or x-axis) of a graph of this data should be the temperature of the water. This is because the temperature of the water is the independent variable. 

Ireally dont know sorry

This is what i found on google “phytoplankton, tiny organisms that live in the ocean, are autotrophs. some types of bacteria are autotrophs. most autotrophs use a process called photosynthesis to make their food.” i hope this you for what your looking for