MOLLUCS
Molluscs are the
largest marine phylum,
comprising about 23% of all the named marine organisms. Numerous molluscs
also live in freshwater and terrestrial habitats. They are highly
diverse, not just in size and in anatomical structure, but
also in behaviour and in habitat. The phylum is typically divided into 9 or 10 taxonomic classes, of which two are
entirely extinct.
Cephalopod molluscs, such
as cuttlefish and octopus, are among the most neurologically
advanced of all invertebrates—and either the giant squid or the colossal squid is the largest
known invertebrate species. The gastropods are by far the most
numerous molluscs in terms of classified species, and account for 80% of the
total.
WORDS THAT YOU DON´T UNDERSTAND:
CUTTLEFISH:CALAMAR.
Comentarios
Publicar un comentario