Evolution-
There is no completely solid information on when and from where mollusks originated- it is known they came from many different levels of small adaptations, and may originally come from an Annelid-like worm, which contains a very large number of possible ancestor species.
The Kingdom Mollusks fall into is the Animalia Kingdom, and their Phylum is Mollusca. The Classes of Mollusks include Gastropoda, Monoplacophores, Polyplacophores, Scaphopods, Bivalves, and Cephalopods. Under each of the 6 classes, the orders pertaining to particular classes are listed.
There is no completely solid information on when and from where mollusks originated- it is known they came from many different levels of small adaptations, and may originally come from an Annelid-like worm, which contains a very large number of possible ancestor species.
The Kingdom Mollusks fall into is the Animalia Kingdom, and their Phylum is Mollusca. The Classes of Mollusks include Gastropoda, Monoplacophores, Polyplacophores, Scaphopods, Bivalves, and Cephalopods. Under each of the 6 classes, the orders pertaining to particular classes are listed.
This Phylogenetic tree represents the bigger picture with Mollusks, it doesn't zoom in with Mollusks, but it zooms out.