This chart graphically details the DV that a serving of Sea vegetables provides for each of the nutrients of which it is a good, very good, or excellent source according to our Food Rating System.. Jonathan Bird ORG For educational use only There are over , known species of Mollusks, which makes them second only to the Arthropods in invertebrate phylum size..Definitions. The Arctic Ocean is the mass of water positioned approximately above latitude N. Arctic Sea Ice refers to the area of the Arctic Ocean covered by ice. The Arctic sea ice minimum is the day in a given year when Arctic sea ice reaches its smallest extent, occurring at the end of the summer melting season, normally during September.. ANIMALS! List of animal names with animal pictures in English. Learn these types of animals to increase your vocabulary about animals in English and thus enhance your English in general..