A barnacle is a crustacean so it has a shell.
well hi there its not commensalism its parasitism because when the barnacles attach themselves to the whale they benefit as they get transportation but the whales get this itchy feeling (skin ulcers) due to barnacles stuck to its skin so it gets harmed the "guest" which are the barnacles is harmaful to the " host" which is the whale .
what does mercer look like on the skin?
what does mercer look like on the skin?
what does Sarcoidosis on the skin look like and can it only affect the skin?
Patches of skin on a whales head made up of lice and barnacles.
They aren't symbiotic : the barnacles (crustaceans related to crabs) are parasites on the whale's skin, and will also attach to boats, docks, and other marine locations.
It looks like skin.
Like beef.
Pink Skin
One can find more information about barnacles for a school research project by borrowing a book about barnacles from the library. One can also look in an encyclopedia.
MRSA looks like a red sore on your skin and slowly develops into an open wound.
Barnacles stick to the boat hull and grow creating a sort of skin over the hull. This in turn slows boat by taking away smoothness of hull and adding weight. Barnacles get knocked off and fall off , which pulls outer hull coating off allowing rot to get in.