Body structure of seaweeds and sagrasses

In general, seaweeds are marine algae that can be seen by the naked eye. They come from three distinct groups of organisms that can photosynthesize, and can be found in the relatively shallow areas of the sea.

Seagrasses are that live in the oceans. Since seagrasses are angiosperms, they are related to land plants, and can produce flowers. They also have distinct organs such as roots, stems, and leaves.