The presence of he shell, the type of shell, the type of foot, and the type of nervous system
There are three main classes of mollusks: Gastropoda (snails and slugs), Bivalvia (clams, mussels, oysters), and Cephalopoda (octopuses, squids, nautiluses). Each class has unique characteristics and habitats.
the 8 groups of invertebrates are the arthropods, poriferans, platyheminthes, coelenterates, nematoeds, mollusks, echinoderms, and annelids
Soft bodies
Bivalve mollusks
Minibeasts, or small invertebrates, can be categorized into three main groups: insects, arachnids, and mollusks. Insects, such as butterflies and ants, have three body segments and six legs. Arachnids, including spiders and scorpions, typically have eight legs and two main body segments. Mollusks, like snails and slugs, are characterized by soft bodies and often have a hard shell.
Their foot
Mollusks are divided into three main groups based on certain characteristics. The three main groups of common mollusks are snails, slugs, and their relatives; Two-shelled mollusks; and tentacled mollusks.
Three classes of mollusks are Gastropoda, Bivalvia, and Cephalopoda. Gastropoda includes snails and slugs, Bivalvia encompasses clams and oysters, and Cephalopoda features octopuses and squids. Each class exhibits distinct characteristics, such as the single, spiraled shell of gastropods or the highly developed nervous system of cephalopods. These classes highlight the diversity and adaptability of mollusks in various environments.
sponges+mollusks+arthropods+worms+octopods+echinoderms
Flatworms, Roundworms, Annelids, Mollusks, and Arthropods
Cephalopods and mollusks are both part of the phylum Mollusca, but they have distinct characteristics. Cephalopods, such as octopuses and squids, are known for their advanced nervous systems, complex behaviors, and ability to change color and texture for communication and camouflage. Mollusks, which include snails, clams, and oysters, typically have a softer body covered by a hard shell and exhibit a wider range of body structures and habitats. Both groups possess a muscular foot and a mantle, which plays a crucial role in respiration and shell formation.
UnivalvesBivalvesCephalopods