An abstract is a brief summarizing statement, usually between 75 and 150 words long. It gives thereader a synopsis of the problem, method, results, and conclusions of yourdocument. The abstract takes the form of a paragraph, usually with 5-10 sentences. It appears atthe top of a journal article, just under the title, or on the page following the title page of a report. In the latter instance, the abstract appears on a page by itself.
Quick Answer. A vacuole is a fluid-filled sac that stores food and water in cells. Vacuoles are most commonly found in plant cells, but they also exist in some bacteria and animal cells. Continue Reading.
Many cells make up tissues, many tissues make up organs, and many organs make up organ systems. cell parts, and foreign invaders Central Vacuole Stores water and other materials Circulatory + Respiratory = Oxygen and nutrient-rich cells! Digestive + Excretory = Waste-free and healthy cells!