Where is the mantle located in a clam?

Asked by: Maro Hamim

where is the mantle located and the clam and what is its function? it is located midway on the anterior surface of the shell. It can be seen as the slight soft edge of the shell where the two halves open. Ridges and grooves on the inner surfaces of both valves of a bivalve mollusk near the anterior end of the hinge.

Where is the mantle in clam?

The mantle is all that is visible behind the head: the outer body wall and the fins are all part of the mantle. The brightly coloured mantle of a giant clam protects it from bright sunlight.

What is the mantle of a clam?

The mantle, a thin membrane surrounding the body of the clam, secretes the shell. The oldest part of the clam shell is the umbo, and it is from the hinge area that the clam extends as it grows. I. Purpose: The purpose of this lab is to identify the internal and external structures of a mollusk by dissecting a clam.

Does a clam have a mantle cavity?

Like all mollusks, clams have a mantle. Located inside the mantle cavity are the digestive, respiratory, circulatory, reproductive, and nervous systems. Organs in all of these systems are visible, except for those of the nervous system. As filter feeders, clams collect tiny particles of food suspended in the water.

Where is the mantle on a mollusk?

Two unique features of mollusks are the mantle and radula (see Figure above). The mantle is a layer of tissue that lies between the shell and the body. It secretes calcium carbonate to form the shell. It forms a cavity, called the mantle cav ity, between the mantle and the body.

Where is the mantle located?

The mantle is the mostly-solid bulk of Earth’s interior. The mantle lies between Earth’s dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth’s total volume.

What is mantle What is its function?

Functions of Mantle

The primary function of a mantle is to enclose and protect the internal organs. The mantle cavity is located inside the mantle, in the mollusk body. It holds water and acts as a respiratory organ. Mantle also acts as a mode of communication.

What are the parts of a clam?

Locate the following parts of your clam according to the diagram: adductor muscles gills mantle excurrent siphon incurrent siphon stomach mouth foot intestine Page 3 Lift the gills to find the stomach and intestines.

What is mantle in bivalve?

In bivalves, the mantle is a membranous organ consisting of left and right lobes, united dorsomedially by an isthmus that lines the interior of the shell valves and surrounds the mantle cavity [1].

What is the mantle made of?

In terms of its constituent elements, the mantle is made up of 44.8% oxygen, 21.5% silicon, and 22.8% magnesium. There’s also iron, aluminum, calcium, sodium, and potassium. These elements are all bound together in the form of silicate rocks, all of which take the form of oxides.

What does the mantle look like?

In grade-school science textbooks, Earth’s mantle is usually shown in a yellow-to-orange gradient, a nebulously defined layer between the crust and the core. To geologists, the mantle is much more than that. It’s a region somewhere between the cold crust and the bright heat of the core.

How deep is a mantle?

The mantle

At close to 3,000 kilometers (1,865 miles) thick, this is Earth’s thickest layer. It starts a mere 30 kilometers (18.6 miles) beneath the surface. Made mostly of iron, magnesium and silicon, it is dense, hot and semi-solid (think caramel candy). Like the layer below it, this one also circulates.

What are 5 facts about the mantle?

Five facts about the mantle include:

• The mantle makes up 84% of Earth’s volume.
• The mantle extends from 35-2980 kilometers below Earth’s surface.
• The mantle is mostly solid rock. …
• The mantle ranges in temperatures from 200 to 4000 degrees Celsius.
• Convection currents in the mantle drive plate tectonics.

What does the mantle do in mollusks?

The mantle of mollusks and brachiopods secretes the shell in species that possess shells. It also forms a mantle cavity between itself and the body. The brachiopod mantle has a dorsal and a ventral lobe covered with small papillae (nipple-like projections) that penetrate into the shell.

What are the two parts of mantle?

Earth’s mantle is divided into two major rheological layers: the rigid lithosphere comprising the uppermost mantle, and the more ductile asthenosphere, separated by the lithosphere-asthenosphere boundary.

Is the mantle hot?

As the outer core is fluid and presumably convecting (and with an additional correction for the presence of impurities in the outer core), we can extrapolate this range of temperatures to a temperature at the base of Earth’s mantle (the top of the outer core) of roughly 3,500 to 5,500 kelvins (5,800 to 9,400 degrees F) …

Is the mantle liquid?

The Earth’s mantle, on which the crust is lying on, is not made of liquid magma. It is not even made of magma. The Earth’s mantle is mostly made of solid rock.

Is the mantle hot or cold?

The entire mantle is about 1800 miles thick, which means the lower mantle makes up the bulk of this part of the Earth. The temperature of the mantle near the crust ranges from 900 to 1600 degrees Fahrenheit. It gets hotter at greater depths. The lower mantle near the core is as hot as 7000 degrees Fahrenheit.

Is there water in the mantle?

The finding, published in Science, suggests that a reservoir of water is hidden in the Earth’s mantle, more than 400 miles below the surface. Try to refrain from imagining expanses of underground seas: all this water, three times the volume of water on the surface, is trapped inside rocks.

Why does the mantle move?

The mantle moves because of something called convection. Convection is basically the way the Earth cools itself off by moving heat from the inside of the Earth to the outside. As hot rock rises up from the deep Earth, it carries heat with it.

What is the mantle physical state?

It is predominantly solid but in geological time it behaves as a viscous fluid. Partial melting of the mantle at mid-ocean ridges produces oceanic crust, and partial melting of the mantle at subduction zones produces continental crust.

Why is the mantle liquid?

The Earth’s mantle is a mixture of solid and liquid. The upper mantle is solid and the lower mantle is liquid. Since there is more heat and pressure deeper in the mantle, the rock in the lower mantle is liquefied.