yes there is
no
Seaweed is a living organism. It is a eukaryotic protista.
lichen
non living, since it dried.
big slimy green thing
Yes, Kelp is a seaweed. Seaweed is the common name for most marine algae. Kelp is a type of brown seaweed. See related link
Seaweed is the one thing you need to eat!
No. See the 'Related Questions' for more information.
No. Seaweed is actually good for a pond, but pond scum (most of the time) isn't
seaweed seaweed seaweed
No, kale is not seaweed. Perhaps you mean "kelp" which is a seaweed.
Answer Seaweed is not an animal of the sea's it's a plant.