What are 3 animals in phylum Mollusca?
What are 3 animals in phylum Mollusca?
The molluscs include many familiar animals, including clams, snails, slugs, and squid, as well as some less familiar animals, like tusk shells and chitons (Fig. 3.51 A). Molluscs are found in nearly all freshwater and marine environments, and some are found also on land.
What is the function of the ctenidium?
Even though Ctenidia helps in respiration, the organisms which present under the phylum of Mollusca have other specific organs like the mantle cavity and pulmonary sac for sake of respiration. We can say that the function of Ctenidia is to increase the space inside the body and help in respiration.
How does ctenidium help the body of a mollusk?
Mollusk gills are called ctenidia, and they are made up of a series of thin filaments of tissue that resemble the teeth of a comb. These filaments absorb oxygen from water and transfer it to the blood stream. They also receive carbon dioxide from the blood and release it into the surrounding water.
Which of the following animal belongs to phylum Mollusca?
The animals belonging to the phylum Mollusca are apple snail, pearl oyster, devil fish, tusk shell, etc.
What is ctenidium made of?
pair of lamellate gills (ctenidia), a thick layer of glandular epithelium called mucus tracts or hypobranchial glands, and the outlets for the digestive, excretory, and reproductive systems.
What is Monopectinate gill example?
This structure exists in bivalves, cephalopods, Polyplacophorans (chitons), and in aquatic gastropods such as freshwater snail and marine snails. Some aquatic gastropods possess one ctenidium known as monopectinate and others have a pair of ctenidia known as bipectinate.
What is Monopectinate Gill example?
Are octopus molluscs?
octopus, plural octopuses or octopi, in general, any eight-armed cephalopod (octopod) mollusk of the order Octopoda. The true octopuses are members of the genus Octopus, a large group of widely distributed shallow-water cephalopods. (See cephalopod.)
What is a ctenidium in molluscs?
Ctenidium (mollusc) A ctenidium is a respiratory organ or gill which is found in many mollusks. This structure exists in bivalves, cephalopods, and in many aquatic gastropods, i.e. in some freshwater snails and sea snails and also in some sea slugs.
What animals are in the phylum Mollusca?
The phylum Mollusca consists of over 100,000 marine, freshwater, and terrestrial species. Most are familiar to you as food sources: oysters, clams, scallops, and yes, snails, squid and octopods.
What is the function of a ctenidium?
A ctenidium is a respiratory organ or gill which is found in many mollusks.
What is a ctenidium in Pleurobranchaea?
A live individual of Pleurobranchaea meckelii; the ctenidium is visible as a feather-like structure in this view of the right-hand side of the animal. A ctenidium is a respiratory organ or gill which is found in many mollusks.
