my son who is 8 is looking for the answer to his late night question and i need a little help here.
2006-07-13 02:33:14 · 5 answers · asked by Freak Militia S 1 in Science & Mathematics ➔ Zoology
Octopuses, squids, cuttlefish and the chambered nautilus belong to class Cephalopoda, which means 'head foot'. Cephalopods are mollusks and therefore are related to bivalves (scallops, oysters, clams), gastropods (snails and slugs), scaphopoda (tusk shells), and polyplacophorans (chitons). Some of these mollusks, like the bivalves, don't even have a head, much less something large enough to be called a brain! Yet cephalopods have well developed senses and large brains and are thought to be the most intelligent of all invertebrates. Most mollusks are protected by a shell and many of them are not very mobile. Although the ancient nautilus has an external shell, the trend in cephalopods is to internalize and reduce the shell. The shell in cuttlefish, when present, is internal. The cuttlebone from cuttlefish is sold in many pet shops to supply calcium to birds. Squid also have a reduced internal shell called a pen. Octopuses lack a shell all together.
2006-07-13 03:26:06 · answer #1 · answered by ATP-Man 7 · 4⤊ 1⤋
Octopuses, squids, cuttlefish and the chambered nautilus belong to the same class Cephalopoda, which means 'head foot'...
Cephalopods are mollusks...
Cephalopods have well developed senses and large brains and are thought to be the most intelligent of all invertebrates.
Kingdom Animalia
Phylum Mollusca
Class Cephalopoda
Order Teuthoidea (Squid), Octopoda (Octopus)
2006-07-13 12:44:05 · answer #2 · answered by Handsome 6 · 0⤊ 0⤋
Why yes, squids and octopus are related, both belonging to the class Cephalopoda. In fact, their closes relative is the garden snail, as they are classed as mollusks. Go figure, for more detail, pls seek
http://en.wikipedia.org/wiki/Cephalopoda
2006-07-13 09:39:09 · answer #3 · answered by Dames 2 · 0⤊ 0⤋
They are in the same class (cephalopoda) But different familes (Octopoda and Teuthida). For the sake of comparison it's like how Mammalia is a class and some orders include Primates, Carnivores (cats/bears), and Chiroptera (bats)...
2006-07-13 09:40:46 · answer #4 · answered by snake_girl85 5 · 0⤊ 0⤋
Yes, they are bolth mollusks, like clams and mussels and snails, and they're bolth cephalopods, which includes cuttlefish, squid and octopi.
2006-07-13 13:40:40 · answer #5 · answered by picsnap 3 · 0⤊ 0⤋