Seaweeds are not plants. They are protists. They differ from plants in that they lack vascular tissues (xylem and phloem), they have holdfasts instead of roots, and their cells do not have all of the plant characteristics.
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Seaweeds are multicellular algae that live in marine environments, while plants are multicellular organisms that grow on land or in freshwater. Seaweeds do not have true roots, stems, or leaves like plants do, and they rely on water for support and nutrients. Additionally, seaweeds reproduce through spores, while plants reproduce through seeds.
the main difference is its infloresence catkin or akin
Its a type of algae . PS: take note, diatom is also a type of algae. the major difference that you can observe between a diatom and a seaweed is their size. Diatom is a microalgae(microscopic in size) and seaweed, is a macroalgae(can be observed by the naked eye).
Native plants of the ocean include seaweeds such as kelp, seagrasses like eelgrass, and phytoplankton such as diatoms. These plants play important roles in marine ecosystems by providing food and habitat for a variety of organisms.
a biologist specializing in the study of plants
Eukaryotes have a nucleus and membrane-bound organelles, while prokaryotes do not. Animals and plants are both eukaryotes, but animals are multicellular, heterotrophic organisms that lack cell walls, while plants are multicellular, autotrophic organisms that have cell walls made of cellulose.