Lichens, like the one shown in the picture, are usually combinations of algae and a) fungi. b) mosses. c) orchids. eliminate d) zooplankton.

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