Plants living in moving water have: Are tiny, free floating species of algae, and are the food base of the ecosystem None of the above Long, thin, flexible stems that offer little resistance to the current and strong root systems to hold them in place. Are tall because they have greater support, enabling them to rise above other plants to reach the sun.

The correct answer is: Long, thin, flexible stems that offer little resistance to the current and strong root systems to hold them in place.<br /><br />Plants living in moving water, such as rivers or streams, have adapted to their environment by developing long, thin, and flexible stems. These stems offer little resistance to the current, allowing the plants to float freely without being uprooted. Additionally, these plants have strong root systems that anchor them firmly in place, preventing them from being washed away by the moving water. This adaptation helps them survive and thrive in their aquatic habitat.