what is a clam characteristics
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- 1 Clams can control their outer shells and shut them in response to stimuli, via a elastic ligament and two large muscles. 2  In side their usually grey, black shells you can see a white, tan center. 3  Clams have siphons that forces water out and allows them to take in micro organisms. Clams have two shells(Bivalve) that filters their food. 2  Clams can control their outer shells and shut them in response to stimuli, via a elastic ligament and two large muscles. 3  In side their usually grey, black shells you can see a white, tan center.
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Difference Between Oysters and Clams There are differences in the shell textures of oysters and clams. The shell of a clam is smooth and shiny while an oyster has a rough outer shell. Both the organisms take in water through the shells but the filtering procedure is different. Oysters produce pearls which are in much demand but clams do not.
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Clam These bivalve mollusks come in hard-shell and soft-shell varieties. Hard-shell: East Coast varieties include Littleneck clams (less than 2 diameter), cherrystone clams (2 1/2 diameter) and chowder clams (3 diameter or larger) also called large clams or quahogs--an American Indian name. West Coast varieties include Pacific littleneck clams, pismo and butter clams.
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- Some defining characteristics of Chondrichthyes are internal fertilization by the use of pelvic claspers, heterocercal tails, placoid scales, cartilage skeletons, teeth unattached to jaws, and the absence of swim bladders [4][5].olocephali are a clade of chondrichthyes that primarily differ from the other clades of chondrichthyes (Galeomorpha, Squalomorpha, and Batoidea) by having a single gill opening. They are put together with chrondrichthyes because their soft anatomy mostly compares with species found within this class than any other.
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What's the Difference? Little Neck, Cherry Stone, Top Neck, and Quahog Clams These are actually all quahogs! The quahog (pronounced coe-hog) is a species of hard-shelled clam and the one we most commonly enjoy in our chowders and po boys. All those other names - from little neck on up - are this same species of clam and just refer to how large the clam has grown. Little Neck: The smallest size of clam, amounting to 7-10 clams per pound.
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- The mollusks that have a hinged, two-part shell joined by strong muscles are called bivalves. Clams, Oysters, and Scallops are bivalve mollusks and are a familiar food source.These three animals pull their shells closed by contracting powerful muscles near the hinge. The open these shells they have to relax their muscles.lams, Oysters, and Scallops are bivalve mollusks and are a familiar food source. These three animals pull their shells closed by contracting powerful muscles near the hinge. The open these shells they have to relax their muscles.
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Clam Clam: Clam, in general, any member of the invertebrate class Bivalvia—mollusks with a bivalved shell (i.e., one with two separate sections). More than 15,000 living species of bivalves are known, of which about 500 live in fresh water; the others occur in all seas. Bivalves usually live on or in sandy or muddy bottoms.
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- More detailed information about bivalve shells can be found here. The valve structure and soft anatomy of the bivalves varies among species. The Hard-Shelled Clam or Cherrystone, Mercenaria mercenaria, is used here as an example of a typical bivalve.Important features of bivalve shells are: 1  two shelly valves.ore detailed information about bivalve shells can be found here. The valve structure and soft anatomy of the bivalves varies among species. The Hard-Shelled Clam or Cherrystone, Mercenaria mercenaria, is used here as an example of a typical bivalve.
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- Geoduck (Panopea generosa). The most impressive clam in the Pacific Northwest is the geoduck (Panopea generosa). The world's largest burrowing clam, the geoduck reaches an average size of 2.07 pounds (including the shell) in subtidal waters of Puget Sound (based on surveys of commercial beds before fishing).eoduck (Panopea generosa). The most impressive clam in the Pacific Northwest is the geoduck (Panopea generosa). The world's largest burrowing clam, the geoduck reaches an average size of 2.07 pounds (including the shell) in subtidal waters of Puget Sound (based on surveys of commercial beds before fishing).
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Characteristics of Mollusks 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. Most of the mollusks live in water but some live on land.
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- If you become careless in your digging for razor clams you could find out the hard way. Razor clam shells are thin and relatively brittle, so if cracked they create a very sharp edge, like a razor, that have been known to cut many of harvester fingers and hands.
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- 1 Clams have two shells(Bivalve) that filters their food. 2  Clams can control their outer shells and shut them in response to stimuli, via a elastic ligament and two large muscles.3  In side their usually grey, black shells you can see a white, tan center. Clams have two shells(Bivalve) that filters their food. 2  Clams can control their outer shells and shut them in response to stimuli, via a elastic ligament and two large muscles. 3  In side their usually grey, black shells you can see a white, tan center.
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Mollusks Mollusks comprise a group of soft-bodied animals that includes snails, clams, and sea slugs. The most common characteristic of most mollusks is their shell. One of the largest groups, the snails, is renowned for their shells. Snails are univalves, which means they have one shell.And it is this shell that for many people is the epitome of the ocean.he most common characteristic of most mollusks is their shell. One of the largest groups, the snails, is renowned for their shells. Snails are univalves, which means they have one shell. And it is this shell that for many people is the epitome of the ocean.
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- The clam breathes like a fish with gills. On both sides of the foot are these gills that remove oxyen and bring it in too. The clam breathes like a fish with gills. On both sides of the foot are these gills that remove oxyen and bring it in too.
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- The bean clam is a small edible clam usually less than 1 inch long and native to southern California. The coquino or wedge clam is its east coast cousin. They have a very good flavor but being very small, it is a tedious job cleaning them so they are usually used in soups or stews.
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- Little neck clams are the smallest species of clam available. This  gives them the highest mass of any in a bushel, with a count of 400  clams.
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- 1 Hard clams, also commonly called Quahog, were of great cultural significance to the Native Americans of Southern New England. 2  Native Americans cut beads from the inside of their shells for use in their art work. 3  The beads were also used as currency, called wampum.arvesting Hard Clams. The hard clam is a commercially important species that is harvested both by commercial fishermen (baymen) or by the recreational clammer. Hard clams are classified by size for the food market. The smallest size is the littleneck clam, followed by topnecks, cherrystones and chowders.
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The Digestive System of the Hard Clam 2. After that it goes to the gills where the water and the particles are separated. The gills have mucus that allow the particles to stick to it and this is how it separates the particles to the water. The gills also get oxygen from the water. (1) 3. Cilia has a very important role in the digestive system of the Hard Clam.
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- It's hard to imagine that a clam could be a close cousin to the earthworm, because most familiar molluscs have a highly modified body type. The ancestral mollusc probably resembled a chiton, a flattened worm like animal protected by a dorsal shell. Both molluscs and annelids probably evolved from free-living flatworms.
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- Characteristics of molluscs unsegmented soft body most have internal or external shell have a mantle-a fold in the body wall that secretes the hard prtesctive shell muscular foot and/or tentacles have a radula-a toothed structure used to grate food two pairs of gills except in polmonate snails.haracteristics of molluscs unsegmented soft body most have internal or external shell have a mantle-a fold in the body wall that secretes the hard prtesctive shell muscular foot and/or tentacles have a radula-a toothed structure used to grate food two pairs of gills except in polmonate snails.
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Clam Dissection Mollusks also have a radula or file-like organ for feeding, a mantle that may secrete a shell, and a muscular foot for locomotion. Clams are marine mollusks with two valves or shells. Like all mollusks, a clam has a mantle which surrounds its soft body.
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Comparing the Digestive system of clamsand Porpoises Up close: Gills. The clam gills play an interesting role in the clam's survival. The gills have two functions in two separate systems of the clam. For the digestive system, the gills aide in digestion through separating silt from the nutrition and aids in the respiratory system through providing oxygen to the clam.
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The Digestive System of the Hard Clam The Digestive System of the Hard Clam. The Hard Clam is a filter feeder. This mean that they eat algae, dust, and other particles that help filter the water. Without them the algae would grow so much that we wont even see the water. Although hard Clams are very small, they have an amazing digestive system. They really don't have to do much only open their mouths. 1. First the algae or food enters the incurrent siphon not the excurrent siphon because the excurrent siphon is the opening for waste products.
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- 1 Composition: calcite. 2  Grain Size: very fine grained. 3  Common Sedimentary Environments: marine. 4  Other Characteristics: low hardness and reactivity to acid of calcite combined with the white rock color. 5  Individual shells are visible with a microscope.
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Mallard Mallards have the classic duck characteristics: large bodies, round heads, and wide, flat bills. Males (drakes) have a gray body and yellow bills and females (hens) and juveniles are mottled brown with orange-brown bills. Both sexes have a blue iridescent wing patch bordered in white.
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Giant clam Tridacna maxima has the largest geographical distribution among giant clam species; it can be found off high-or low-elevation islands, in lagoons or fringing reefs. Its rapid growth rate is likely due to its ability to cultivate algae in its body tissue.any small clams die at this stage. The clam is considered a juvenile when it reaches a length of 20 cm. It is difficult to observe the growth rate of T. gigas in the wild, but laboratory-reared giant clams have been observed to grow 12 cm a year.