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Pteropoda (common name pteropods, from the Greek meaning "wing-foot") are specialized free-swimming pelagic sea snails and sea slugs, marine opisthobranch gastropods. Most live in the top 10 m of the ocean and are less than 1 cm long.
Most pteropods have some form of calcified shell, although it is often very light, even translucent. [ 3 ] The sea butterflies include some of the world's most abundant gastropod species; [ 1 ] as their large numbers are an essential part of the ocean food chain, they are a significant contributor to the oceanic carbon cycle .
The adaptations also explain the common name sea angel and the scientific name of the order: From Greek gymnos meaning "naked" and soma meaning "body". The lack of a heavy shell for gymnosomes allows them to hover on the upper water surfaces for longer periods, along with a streamlined body that reduces the drag coefficient.
All forms of life in the sea have the potential to become food for another life form. In the ocean, a food chain typically starts with energy from the sun powering phytoplankton, and follows a course such as: phytoplankton → herbivorous zooplankton → carnivorous zooplankton → filter feeder → predatory vertebrate
Clionoidea is a taxonomic superfamily of sea slugs, specifically naked (i.e. unshelled) pteropods, marine opisthobranch gastropod mollusks in the clade Gymnosomata. [1] They are sometimes called "sea angels" or "naked sea butterflies" along with the other superfamily in the Gymnosomata. They can be found anywhere from the surface to a depth of ...
It's a Wonderful Life had a big budget for the time ($3.7 million), so it's no wonder that the crew put a lot of time and effort into constructing the town of Bedford Falls. The set took two ...
The Facts of Life aired for nine seasons, becoming one of the longest-running sitcoms of the '80s. Before the series came to an end in 1988, the story of boarding school housemother Edna Garrett ...
Fans are about to get more of the Portokalos family! On Thursday, the trailer for My Big Fat Greek Wedding 3 was released, and showed Toula (Nia Vardalos), Ian (John Corbett) and the whole family ...