Final answer:
Plants growing in saturated wet areas may adapt by developing pneumatophores, spongy outgrowths that allow for gas exchange in low-oxygen environments.
Step-by-step explanation:
Plants that grow in wet areas may produce spongy outgrowths on their roots called pneumatophores.
These specialized root structures can be found in trees like mangroves and cypress. Pneumatophores are upward-growing roots containing pores and tissue adapted for gas exchange. They allow plants to obtain oxygen in aquatic environments where the soil is low in oxygen because of saturation with water. Another adaptation observed in aquatic plants such as wild rice is the development of aerenchyma, which are large air spaces in the root cortex providing a pathway for oxygen to reach root tips in oxygen-poor sediments.