Mollusc

From WikiMD's Wellnesspedia

Mollusca is the second largest phylum of invertebrate animals. The members are known as molluscs or mollusks (/ˈmɒləsk/). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species.

Characteristics[edit | edit source]

Molluscs are a diverse group, with the highest diversity occurring in marine environments. They have a wide range of forms, from large predatory squid and octopus, to small grazing forms with elaborately sculpted and colored shells.

Anatomy[edit | edit source]

Molluscs have a specific body plan which includes a mantle that secretes calcium carbonate to form a shell, a muscular foot, and a radula for feeding.

Classification[edit | edit source]

Molluscs are classified into several groups (taxa). The most common system divides molluscs into eight classes.

Evolution[edit | edit source]

The fossil record of molluscs is relatively complete, and they are well represented in most marine and freshwater environments.

Human interaction[edit | edit source]

Molluscs have been used by humans for food, ornamentation, and as currency. Some species are also harmful to humans, as they can be vectors for diseases.

See also[edit | edit source]

References[edit | edit source]


External links[edit | edit source]


Mollusc Resources

Find a healthcare provider anywhere in the world quickly and easily!

Wiki.png

Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Search WikiMD


Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro) available.
Advertise on WikiMD

WikiMD is not a substitute for professional medical advice. See full disclaimer.

Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.


Contributors: Admin, Prab R. Tumpati, MD