What is something that covers a mollusk's internal organs?

The mantle is a soft tissue layer that is formed from folds of the dorsal body wall. It lies beneath the shell where it covers the body of the animal.

1. What covers the internal organs of a mollusk?
2. How do mollusks protect themselves?
3. What is the sheath of tissue surrounding the internal organs of a mollusk called?
4. What is the body plan of a mollusk?
5. What are the 3 distinct body parts of a mollusk?
6. How do mollusks camouflage?
7. How do cephalopods protect themselves?
8. What type of defenses do the mollusks have?
9. What is visceral hump?
10. What is the mantle skirt snail?
11. What type of skeleton does Mollusca have?
12. Which of the following is the organ used by mollusks for excretion?
13. Where are the body organs of a mollusk located?
14. What are the main parts of a mollusk In addition please define them?
15. What are the parts of a mollusk?
16. What 2 other parts do all mollusks have?

What covers the internal organs of a mollusk?

Mollusks often have a hard outer shell to protect their bodies. All mollusks have a thin layer of tissue called a mantle which covers their internal organs. The mantle produces the mollusk's shell. Clams, oysters, snails, and octopuses are all mollusks.

How do mollusks protect themselves?

Mollusks have soft bodies, which makes them easy prey for many other kinds of animals. ... On way that mollusks protect themselves is to build a hard shell around their bodies. Clams, oysters, snails, mussels, and scallops all have shells. As long as the shell is not broken, it is hard for other animals to eat them.

What is the sheath of tissue surrounding the internal organs of a mollusk called?

Note the conspicuous fold of tissue called the mantle (1). In molluscs the mantle is a sheath of skin that hangs down in two folds around the soft body and encloses a mantle cavity, which performs many of the same functions as a coelom in other animals.

What is the body plan of a mollusk?

The body plan of a mollusk usually consists of a head region, a muscular foot, and a visceral mass of internal organs that is often contained within a dorsal shell. Each class possesses some variation on this basic plan.

What are the 3 distinct body parts of a mollusk?

In general, mollusks have 3 body regions: a head, a visceral mass, and a "foot." The head contains the sense organs and "brain," while the visceral mass contains the internal organs. The "foot" is the muscular lower part of the body which is in contact with the substrate.

How do mollusks camouflage?

It uses specialized chromatophore cells in its mantle to blend in with its environment. An octopus is very good at processing information from its environment so it can camouflage itself. It has excellent eyesight and an elaborate nervous system connected to chromatophores in its skin.

How do cephalopods protect themselves?

One of the most famous defensive adaptations of cephalopods is their ink. Used to distract a predator and allow a squid or octopus to escape quickly, ink not only provides a visual distraction or barrier, but it also disrupts a predator's sense of smell and taste.

What type of defenses do the mollusks have?

The internal defense mechanisms of molluscs involve such cellular reactions as: phagocytosis, nodule formation, encapsulation, pearl formation, atrophy, necrosis and tissue liquefaction. Granular hemocytes are the most numerous cell type of molluscan blood active in cellular defenses.

What is visceral hump?

The visceral hump, or visceral mass, of gastropods is always contained within the shell; it generally holds the bulk of the digestive, reproductive, excretory, and respiratory systems. A significant part of the visceral hump consists of the mantle, or pallial, cavity.

What is the mantle skirt snail?

The mantle cavity is a central feature of molluscan biology. This cavity is formed by the mantle skirt, a double fold of mantle which encloses a water space. This space contains the mollusk's gills, anus, osphradium, nephridiopores, and gonopores. ... The mantle is highly muscular.

What type of skeleton does Mollusca have?

Unlike the internal skeleton of humans, mollusks actually have an external skeleton. This exoskeleton protects the animal's soft inner body parts and acts as a sight for muscle attachment.

Which of the following is the organ used by mollusks for excretion?

Mollusks have a coelom and a complete digestive system. Their excretory system consists of tube-shaped organs called nephridia (see Figure above).

Where are the body organs of a mollusk located?

Most mollusks have a scraping feeding appendage known as a radula and an organ at the top of their bodies called a mantle.

What are the main parts of a mollusk In addition please define them?

Some of the qualities that define a mollusk are definite organs (mainly heart, gonads, and kidneys), a complete digestive tract, and a muscular foot. Although their bodies are not segmented, they do have two definable parts: the head and the foot. Their shells are made of calcium carbonate.

What are the parts of a mollusk?

The four important body parts in the mollusk could be listed as: Shell, Mantle, Visceral Mass and Foot.

What 2 other parts do all mollusks have?

All mollusks have a visceral mass, a mantle, and a foot. The visceral mass contains the digestive, excretory, and reproductive organs. The mantle is a covering.