Cirripedia
The barnacles belong to the class Thecostraca
Both belong to same class Crustacea , both have 2 pairs of antanae .
Barnacles are crustaceans( a type of arthropods)
commensalism
The Latin name for the common barnacle is Balanus balanoides. Barnacles belong to the class Cirripedia within the subphylum Crustacea. There are various species of barnacles, each with its own scientific name, but Balanus balanoides is one of the most commonly referenced.
Yes, "as rough as the barnacles" is a simile. It compares the roughness of something to the rough texture of barnacles using the word "as."
There are more than 1,000 different species of barnacles.
Barnacles protect themselves by sticking to something sturdy.
Barnacles live only in salt water.
Barnacles are shellfish that cling to rocks or ships hulls.
An example of commensalism is the relationship between barnacles and whales. Barnacles attach themselves to the skin of whales and benefit by getting a free ride through the water and access to nutrients. The whales are not significantly affected by the presence of the barnacles.
The things that eat acorn barnacles are whelks which arte sea snails, mussels and some starfish all eat of feed on barnacles