These are complex, multicellular organisms. Like land plants, they possess specialized tissues, including roots, stems, and leaves. Most aquatic plants evolved from terrestrial ancestors that returned to the water, retaining vascular systems to transport nutrients.
Dense "beds" of plants and kelp forests provide nurseries for young fish and hiding spots from predators. Aquatic Plants & Algae
These are rooted in the soil underwater, but their upper portions—leaves and flowers—grow above the surface. Common examples include cattails and bulrushes. These are complex, multicellular organisms
Primarily marine, these algae contain pigments that allow them to photosynthesize in deeper, dimmer waters where blue light penetrates. These are complex
These organisms act as natural filters, absorbing excess nutrients like nitrogen and phosphorus, which helps prevent toxic water conditions.