What are the 6 molluscs?

by ·

What are the 6 molluscs?

Class Gastropoda – snails, slugs, limpets, whelks, conchs, periwinkles, etc. Class Bivalvia – clams, oysters, mussels, scallops, cockles, shipworms, etc. The Class Scaphopoda contains about 400 species of molluscs called tooth or tusk shells, all of which are marine.

How many types of molluscs are there?

85,000

What are the four types of molluscs?

The four major groups of mollusks (phyla Mollusca) are: 1) chitons; 2) gastropods, including snails, slugs (mostly marine, but some freshwater), and nudibranches.

What are the 7 classes of mollusks?

Phylum Mollusca is classified into seven classes;

  • GASTROPODA (single shelled cowries, cones etc)
  • BIVALVIA ( two shelled like clams, mussels etc)
  • APLACOPHORA (solenogasters)
  • MONOPLACOPHORA (segmented limpets)
  • POLYPLACOPHORA ( or Amphineura as it was earlier called- Chitons)
  • SCAPHOPODA (tusk shells)

What is the largest mollusc?

Giant Clam

Can mollusks feel pain?

After discussing this framework in detail, we conclude that molluscs are incapable of feeling pain since the nervous system of molluscs (unlike humans) lacks the neural architecture required to implement the requisite computations defined within this framework.

Is it cruel to boil lobsters?

Anyone who has ever boiled a lobster alive can attest that, when dropped into scalding water, lobsters whip their bodies wildly and scrape the sides of the pot in a desperate attempt to escape. In the journal Science, researcher Gordon Gunter described this method of killing lobsters as “unnecessary torture.”

Do lobsters poop out of their mouths?

Food is handled and processed first by the mouthparts and then is crushed by the mandibles before being swallowed. It then makes its way through the three main regions of the digestive system. Any remaining material (not digested) is packaged into fecal pellets surrounding by a mucous membrane.

Do lobsters have blue blood?

Lobsters, like snails and spiders, have blue blood due to the presence of hemocyanin, which contains copper. In contrast, vertebrates and many other animals have red blood from iron-rich hemoglobin.