How to use in-sentence of “barnacles”:
+ Sessile organisms such as barnacles and tunicates, and sea-floor groups like mussels and crabs, need some way to move their young into new territory, since they cannot move long distances as adults.
+ When the whale does this, many of the barnacles on the side that rubbed along the bottom are scraped off.
+ Since the intertidal zone often Desiccationdesiccates when the tide is out, barnacles are well adapted to water loss.
+ However, scientists say the lice and barnacles do not harm the whale, and it is possible they may actually “help” the whale by feeding off of dead skin, which the whale needs to get rid of.
+ The barnacles reproduce sexually, and produce little nauplius larvae which disperse in the plankton.
+ So, whichever side has fewest barnacles is the side the whale prefers to use when it digs up sand.
+ It took many centuries before natural historians discovered that barnacles were crustacea.
