This is because they need the salt from the sea and if they give out the salt they have the will become deficient of it.
Seaweed needs salt water primarily because it is an aquatic plant that has adapted to thrive in marine environments. The salt in seawater helps maintain the osmotic balance within the seaweed's cells, allowing it to absorb water without swelling excessively. Additionally, seaweed absorbs essential nutrients and minerals from salt water, which are crucial for its growth and overall health.
Because they have adapted to living in salt water.
i think it is becaus the salt in the sea it makes it inpossible to eat and it is unhealthy
All kinds of fish, a little salt and seaweed.
Sand Surf Spume Seaweed Spray Salt Shingle
light, salt water, and undigested fertile seaweed
Natural sea salt typically contains very little iodine, as it is not fortified with it like table salt. If you are looking to incorporate iodine into your diet, consider using iodized table salt or consuming iodine-rich foods such as seafood and seaweed.
In most chinese restaurants, Its cabbage.
An alternative to iodine for disinfecting wounds is povidone-iodine, also known as betadine. In cooking, you can sometimes use sea salt or seaweed as substitutes for iodized salt.
the seaweed covers the light back
seaweed
The seaweed get nutrients from the sea water to live.