The pH indicator bromothymol blue in an alkaline solution and yellow in an acidic solution a slight increase in acidity such as when CO2 gas is added causes a solution with the indicator to change from blue to yellow

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

9. the history of life on earth is recorded in

The largest unit within which gene flow can readily occur is a