Marine plants are vital organisms that thrive in ocean waters. They include a variety of species such as seaweed, seagrasses, and phytoplankton. These plants play a crucial role in the marine ecosystem by producing oxygen through photosynthesis and serving as a food source for many marine animals. In addition to supporting marine life, marine plants help stabilize coastlines and reduce erosion. They provide habitats for various creatures, including fish and invertebrates. By absorbing carbon dioxide, they also contribute to combating climate change, making them essential for both the ocean and the planet's health.