periwinkles belong to a group called gastropods...
Almost all marine gastropods breathe with a gill, but many freshwater species, and the majority of terrestrial species, have a pallial lung. The respiratory protein in almost all gastropods is a hemocyanin but a pulmonate family planorbidae have hemglobin as respiratory protein.
sources :www.wikipedia.com
they are both able to breathe on the sea shore
Periwinkles eat microscopic algae and plankton.
they are both able to breathe on the sea shore
Unlike land snails and other sea snails such as periwinkles they have a siphon or tube running out from the part of the body known as the mantle cavity to draw in water for breathing.
Periwinkles survive in extreme colds because they are part of the evergreen family.
Periwinkles live in groups, just like mussels, to retain moisture.
yes
Unlike land snails and other sea snails such as periwinkles they have a siphon or tube running out from the part of the body known as the mantle cavity to draw in water for breathing.
atlantic ocean
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Blue periwinkles a stuck onto rocks by a string of dried mucas which acts like a glue.
Periwinkles typically grow along rocky shorelines, tide pools, and in salt marshes. They are commonly found in temperate regions around the world. Periwinkles thrive in intertidal zones where they can feed on algae and other plant material.