What does it mean when two organisms are very similar?

Plants that have reproductive structures called cones are?

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

What type of graph presents information about how often certain or traits occur?