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What are 8 general characteristics of all molluscs?
General Characteristics of Phylum Mollusca:
- Habitat: They are mostly marine.
- Body Form: The body of molluscs is un-segmented with a distinct head, muscular foot and visceral hump.
- Symmetry: They usually show bilateral symmetry.
- Shell:
- Mantle (Pallium):
- Body wall:
- Body cavity:
- Digestive tract:
What are the five unique characteristic of the phylum Mollusca?
Their body has a cavity. The body is divided into head, visceral mass, muscular foot and mantle. The head comprises of tentacles and compound eyes. The body is covered by a calcareous shell.
What are the characteristics of molluscs for kids?
Mollusks are invertebrates, meaning that they do not have a backbone. They have a soft body that holds the heart, liver, digestive system, and other important organs. Most mollusks have a mouth structure called a radula. The radula is sort of like a rough tongue with lots of tiny teeth.
What are the three characters of Mollusca?
The three most universal features defining modern molluscs are a mantle with a significant cavity used for breathing and excretion, the presence of a radula (except for bivalves), and the structure of the nervous system.
Which is true about Mollusca?
Bilateral symmetry and calcareous shell.
Did you know facts about molluscs?
Fun Facts About Mollusks for Kids
- Octopuses have amazing defenses. They can change their coloring to blend in with their surroundings.
- Most squids are small, but the giant squid is huge. It can grow up to 55 feet long.
- Snails and slugs are called gastropods.
- Clams and mussels live in the sea and rivers.
Which animal belongs to Mollusca?
Molluscs have more varied forms than any other animal phylum. They include snails, slugs and other gastropods; clams and other bivalves; squids and other cephalopods; and other lesser-known but similarly distinctive subgroups.
Which of the following is correct Mollusca?
“Which of the following are true about Mollusca?” Mollusca have bilateral symmetry and they have CaCO3 (calcareous) shell….Question : Which of the following are true about Mollusca?
| Question | Which of the following are true about Mollusca? |
|---|---|
| Subject | Biology (more Questions) |
| Class | 12th |
| Type of Answer | Video, Text & Image |
What are mollusks characteristics?
Characteristics of Mollusks. Mollusks are soft-bodied invertebrates with bilateral symmetry and usually one or two shells. Their organs are in a fluid-filled cavity; the word mollusks in Latin means “soft”.
What animals are in the Mollusca phylum?
The phylum Mollusca is a diverse collection of animals that contains snails and slugs, bivalves, octopus, squid, and the chambered nautilus.
What is considered a mollusk?
Definition of mollusk. : any of a large phylum (Mollusca) of invertebrate animals (such as snails, clams, or squids) with a soft unsegmented body usually enclosed in a calcareous shell broadly : shellfish.
What are examples of mollusks?
Examples of bivalve mollusks include scallops and clams. Although snails are technically univalve, they actually belong to the group known as gastropods , which also includes both sea and land slugs, limpets , sea cucumbers and sea hares.