Class Gastropoda ( snails, sea slugs) ... Cephalopods , which include the familiar squids and octopus , include species which are the largest known invertebrates (giant squid , up to 20 meters long, including tentacles), the most intelligent, and the fastest swimming aquatic invertebrates (squid ). There are also forms with...
www.seamuse.com/molluscs.htm
35. Which Molluscan class includes the most; "intelligent" invertebrates? a. polyplacophora b. bivalvia; c. cephalopoda d. gastropoda e. both bivalvia and cephalopoda are equally; "intelligent".
www.usp.edu/biology/bs131/bs131examIIIsolutions.htm
The basic molluscan body plan includes an internal or external shell lined with a sheet of tissue called the mantle. In most molluscs the ... Molluscan species vary from the microscopic to the largest invertebrates known. ... Scaphopods are the most recent molluscan class to evolve and range from the Ordovician to recent times.
petrifiedwoodmuseum.org/SOMollusca.htm
14. Which Molluscan class includes the most "intelligent" invertebrates? a. polyplacophora b. bivalvia c. cephalopoda d. gastropoda e. Both bivalvia and cephalopoda are equally "intelligent". 15. A radially symmetrical animal that has two embryonic germ layers belongs to which phylum?
upper.usm.k12.wi.us/academics/faculty/rheun/apsqch29.ht... upper.usm.k12.wi.us/academics/faculty/rheun/apsqch29.html
This largest molluscan class includes a diversity of forms that can be divided into three subclasses: Prosobranchia, Opisthobranchia and Pulmonata. ... Members of the class Cephalopoda are among the most highly evolved invertebrates. Unlike most mollusks, cephalopods have a closed circulatory system capable of sustaining...
www.oceaninn.com/guides/mollusks.htm
The cephalopod class of mollusks are considered the most intelligent invertebrates and an important example of advanced cognitive evolution amongst animals in general. ... The coleoidea sub-class of the cephalopods includes the orders of cuttlefish, squid and octopuses and it is these (particularly the latter two) which...
www.sciencedaily.com/articles/c/cephalopod_intelligence... www.sciencedaily.com/articles/c/cephalopod_intelligence.htm
1) Class CEPHALOPODA (nautilus, squids, octopus) ~500 marine spp ... a) includes largest, fastest, and most intelligent invertebrates; purely carnivorous (eat fish, crustaceans, molluscs) ... a) molluscan cross (apparent in the 64-cell stage) b) an eversible scraping buccal organ in the larva; some think it may be related to...
www.biology.ualberta.ca/courses.hp/zool250/LecOutl-02/L... www.biology.ualberta.ca/courses.hp/zool250/LecOutl-02/LecOutl/outl19.htm
7) Class CEPHALOPODA (nautilus, squids, octopus) ~500 marine spp ... a) includes largest, fastest, and most intelligent invertebrates; purely carnivorous (eat fish, crustaceans, molluscs) ... a) molluscan cross (apparent in the 64-cell stage) b) an eversible scraping buccal organ in the larva; some think it may be related...
www.biology.ualberta.ca/courses.hp/zool250/LecOutl-04/L... www.biology.ualberta.ca/courses.hp/zool250/LecOutl-04/LecOutl/outl21.htm
4. Cephalopods (head-foot) This class includes squid and octopus. ... These animals have a complex eye that forms an image (not unlike our own eye) and are the most intelligent of the invertebrates. They need to have good eyesight and a brain because they are active carnivores (predators) - compare the life styles of...
archive.biosci.uga.edu/1998/winter_98/bio_104/notes/15_... archive.biosci.uga.edu/1998/winter_98/bio_104/notes/15_evo_invert.html
Phylum Platyhelminthes ("flat worms") includes some of nature's biggest freeloaders. ... Many stars of the Zoo's Invertebrate Exhibit can be found in phylum Mollusca, including the octopus and nautilus, members of class Cephalopoda. Cephalopods, squid and octopus in particular, are some of the most intelligent invertebrates,
nationalzoo.si.edu/Animals/Invertebrates/Facts/default.... nationalzoo.si.edu/Animals/Invertebrates/Facts/default.cfm