FTCE Pre-K Prekindergarten PK-3 Practice Exam

What do all organisms require to survive?

1. food, water, and shelter

2. food, water, sunlight, and air

3. heat, light, and water

4. oxygen, nitrogen, and minerals

The correct answer is: food, water, sunlight, and air

Food, water, sunlight, and air are essential for the survival of all organisms, as they represent the fundamental needs across different life forms. Food provides the necessary nutrients and energy for growth, reproduction, and maintenance of bodily functions. Water is critical for chemical processes and maintaining cellular structures. Sunlight is particularly vital for photosynthetic organisms, which use it to convert carbon dioxide and water into glucose, essentially serving as a primary source of energy for a wide variety of living beings. Air, especially the oxygen it contains, is crucial for aerobic respiration in many organisms, providing the energy needed to sustain life. In contrast, some of the other options focus on a narrower range of needs or specific organisms, making them less comprehensive. For instance, while shelter can be important for many animals in providing protection and a place to live, it is not universally required by all organisms, such as plants or microorganisms. Similarly, not all organisms need heat or light in a direct way, nor do they all rely on oxygen, nitrogen, and minerals in the same manner. The inclusion of sunlight and air alongside food and water in the correct choice highlights the diverse yet essential elements necessary for survival across various ecosystems.