No, except at the beginning of a sentence because it is not a proper noun.
THe SEA
Sea weed fits in the vegetable category.
Sea weed is a living element.
Because of a misunderstanding by Rodger Clemens and his drug problem.
"Mediterranean Sea" is capitalised, but "border" would not be.
sea weed
They lie in the sea weed
will there are sea weed
No, but if the word "sea" is in the front of a sentence, then yes.
no
pink
Sargasso weed is seaweed that grows in the Sargasso sea. Provides food and shelter for marine life in the deep sea.