Barnicles

==Adaptations:== '''Structural:''' *hard shell - provides protection from predators and helps reduce water loss (prevent desiccation) as water can't move through the shell '''Functional:''' Strong attachment to rocks - they cement themselves to the rock with a special chemical. This attachment is far stronger, but prevents movement. '''Behavioural:''' Barnacles produce free swimming larvae - this helps to distribute their young so that they don't all grow up in the same place, reducing competition. *Ability to close up shell when tide is out to store water and prevent water loss (desiccation). [image:http://i.imgur.com/IhR4hYJl.png]