David Herrin Please select the best answer for each of the following questions and fill in the corresponding letter on the answer sheet. Please select the answer which correctly fills in the blank in the following statement. Mg b. chlorophyll 12. Ca c. cell walls 13.
Water has several important functions in plants.
The plant vacuole is an important organelle. Clay has certain properties that are important for good soil. Cytokinins are found in plants and animals.