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Mollusks
Mollusks is a large, diverse phylum of invertebrates. Types of mollusks range from small (snails and slugs) to large (octopus and giant squid).
767 Questions
Difference between gastropods cephalopods and bivalves?
gastropods include species like snails and slugs
chephalopods include octopus and squid
Bivalves are organisms like clams, mussles and oysters
How many tentacles does a cuttlefish have?
No, if you go on NOVA.com and type in cuttlefish, you can plainly see that the arms aren't as long as its body.
What are two names of shellfish?
Shellfish is a term used to describe any aquatic invertebrate with an exoskeleton that is used for food. It includes some mollusks, crustaceans, and echinoderms such as shrimp, crabs, lobster, clams, and oysters.
an earthworm because the worm eats dirt not fungi like snails, slugs and clams do
When were zebra mussels introduced to the great lakes?
The vast majority of the organisms that are natural enemies in Europe are not present in North America, so they tend to spread relatively unchecked.Because the edges of their shells are so sharp they can easily cut the feet of swimmers and waders in waters infested by them, resulting in the need to wear water shoes in infested waters.
- In some areas they completely cover the substrate - even covering (and smothering) native fresh-water mussels; they are responsible for the near extinction of many native clams and mussel species in the Great Lake system
- They eat the algae that is food for fish. Without food, fish starve.
- Zebra mussels are believed to be the source of deadly avian botulism poisoning that has killed tens of thousands of birds in the Great Lakes since the late 1990s.
- They damage harbors and waterways, ships and boats, and water treatment and power plants. Water treatment plants are most affected because the water intakes bring the microscopic free-swimming larvae directly into the facilities. Zebra mussels also cling to pipes under the water and clog them.
People eat clams, oysters, scallops, mussels, snails, and squid, among other species. Mollusks are also the source of pearls, mother of pearl, and decorative shells. On the negative side some snails and slugs damage garden plants, and other species are hosts of human parasites.
What is the economic importance of arthropods?
Crustaceans are used in aquaculture. They are becoming an industry in the marine business.
Yes, it is a mollusk because mollusks are squid or octopus-like creatures. Mollusks have a variety of ways to create a shell. Some mollusks have shells on the outside, such as a variety of gastropods. The Nautilus is one of the first cephalopods, which traditionally do not have an exoskeleton shell, which does have an outer shell covering.
Are sea shells living or nonliving?
A seashell may refer to the non-living covering of a living mollusc, or it can refer to the living mollusc itself. So it depends on the context; in any case, the seashell is or was part of a living thing.
The chemical composition of a seashell (mostly calcium carbonate) is not a living tissue, but it is connected to (and constructed by) living tissue, just as skin, hair, bones, and teeth are in mammals. When the mollusc dies, the seashell is dead material. But since it is not an organic compound, it is not broken down as other animal tissues are. Similarly in plants, the structures of coral reefs persist because they include minerals not usually broken down by detrivores.
Why is calcium carbonate important to mollusks?
Calcite is one of the most abundant minerals on Earth. Thousands of products including decorations and building materials to natural physical features of the Earth.
When do mollusks grow their shells?
When a mollusk grows out of it's shell, it will scramble to find a new one, since it is extremely vulnerable when it has no shell, which is it's main defense.
Yes, but they have to eat the snail's soft body, and avoid the shell. If the snail goes up the spider's web, the spider would probably eat it.
The majority of mollusca species live in marine environments, and many of them are found intertidally, in the shallow subtidal and on the continental shelf.
No , they both have male and female organ's they just pop out and die mid way through shooting out of there shell . Hope this helped i am a scientist's i know allot about this kind of thing.
Sometimes the mussels predetor could make the mussel species drop down
What are two organisms in the same class but in different orders?
There are several organisms that are in the same class but different orders. For example, wolves and mice are both in the class Mammalia. However, the wolf is in the order Carnivora, and the mouse is in the order rodentia.
