Vacuoles are structures found in many cells. Their job is to store materials needed for the cell. Paramecia and other unicellular organisms often have a special vacuole called a contractile vacuole. Consider what the word “contractile” means. How would this structure help this organism better survive in its moist environment?

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca

The graph shows how much money the south dakota livestock industry earns annually. according to the graph, which industry would experience the greatest financial impact from a loss of pastureland

5. what might happen if you were to remove all light from the setup after the discs have all become buoyant? describe what you would see. explain why this would occur with relation to cellular processes like respiration. [referring to an ap biology lab in which spinach discs are placed in a sodium bicarbonate solution and exposed to light.]