Which letter represents an organism that could only be a primary consumer?

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

Witch theory suggests all living things are made up of cell or cells

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2