Grasses recover quickly from bush fires in the savanna because of their ________

Explanation

Grasses are plants that grow in savannas, and they are known to recover quickly from bush fires. This is because they have perennating organs. Perennating organs are structures in plants that enable them to survive adverse conditions such as fires, drought, and cold temperatures. In this case, the perennating organs in grasses are the parts of the plant that remain alive after the fire, such as the roots and rhizomes. Option A suggests that grasses recover quickly because of their fibrous roots. While it is true that grasses have fibrous roots, they are not the main reason why grasses recover quickly after bush fires. Option B suggests that grasses recover quickly because of their succulent stems. However, this option is incorrect because grasses do not have succulent stems. Option D suggests that grasses recover quickly because of their rapid growth rate. While it is true that grasses grow quickly, this is not the reason why they recover quickly after bush fires. Therefore, the correct answer is option C, perennating organs. Grasses have perennating organs that enable them to regrow quickly after bush fires. It is important to note that not all plants have perennating organs, and different types of perennating organs exist in different plants. Overall, grasses have perennating organs that allow them to quickly recover from bush fires in savannas.