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Which of the following accurately describes gas exchange in mollusks? Ciliated gills propel water through the
This cavity is formed by the mantle skirt, a double fold of mantle which encloses a water space. This space contains the mollusc’s gills, anus, and organs for taste, excretion and reproductive organs. The mantle cavity functions as a respiratory chamber in all molluscs.
, where ctenidia extract oxygen and carbon dioxide is carried away.Which of the following accurately describes how pearls are formed in mollusks? Pearls are formed when chitinous teeth broken off during feeding become lodged in the mollusk. Pearls are formed when the excretory system fails to eliminate uric acid and it becomes crystallized.Which of the following accurately describes the coelom in mollusks? It is highly reduced. It is in spaces around the excretory organs, the heart, and part of the intestine.
Which of the following accurately describes how pearls are formed in mollusks?
Which of the following accurately describes how pearls are formed in mollusks? Pearls are formed when chitinous teeth broken off during feeding become lodged in the mollusk. Pearls are formed when the excretory system fails to eliminate uric acid and it becomes crystallized.
Which of the following accurately describes the coelom in mollusks?
Which of the following accurately describes the coelom in mollusks? It is highly reduced. It is in spaces around the excretory organs, the heart, and part of the intestine.
Gas Exchange and Partial Pressures, Animation
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Which of the following accurately describes the fluid that is propelled by the heart through the blood vessels in mollusks multiple choice question?
Which of the following accurately describes the fluid that is propelled by the heart through the blood vessels in mollusks? The hemolymph is the fluid that is pumped by the heart and eventually empties into the hemocoel.
Which of the following does a mollusk use for movement quizlet?
Mollusks use a muscular (also known as podium) for movement. Which of the following structures secretes the calcium carbonate of the shell in a mollusk?
Which of the following accurately describes gas exchange in mollusks quizlet?
Which of the following accurately describes gas exchange in mollusks? Ciliated gills propel water through the mantle cavity, where ctenidia extract oxygen and carbon dioxide is carried away.
Which of the following best explains how gases move in and out of the body of a flatworm?
They have some of the most complex life cycles among animals. Which of the following best explains how gases move in and out of the body of a flatworm? By simple diffusion.
Where is the coelom of a mollusk?
But molluscs have developed a true coelom, an internal body cavity enclosed by mesodermal membranes. The coelom in molluscs, however, is strangely reduced to a small space around the heart, sometimes called a hemocoel.
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Which of the following accurately describes gas exchange in mollusks? Tracheoles are in direct contact with individual cells, allowing oxygen and carbon …
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Which statement most accurately describes this group? The group includes both lophotrochozoans and ecdyzoans. Which group of mollusks feeds by siphoning water …
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Which of the following accurately describes the coelom in mollusks? It is highly reduced. It is in spaces around the excretory organs, the heart, …
Do mollusks have gills?
Most molluscs have only one pair of gills, or even only a singular gill. Generally, the gills are rather like feathers in shape, although some species have gills with filaments on only one side. They divide the mantle cavity so water enters near the bottom and exits near the top.
Do all mollusks have open circulatory system?
All mollusks except those in the class Cephalopoda have an open circulatory system. In an open circulatory system, blood is not contained entirely in enclosed blood vessels. The heart pumps blood through blood vessels that lead from the gills into body cavities called hemocoels.
How do mollusks get food?
The bivalve molluscs can filter-feed fine particles form the water. Some of the single-shelled molluscs (limpets) possess a ribbon-shaped tongue or radula, covered with rasping teeth, which enables the animal to scrape algae from the rock.
Which of the following statements correctly describes one of the differences between open and closed circulatory systems?
Which of the following statements correctly describes one of the differences between open and closed circulatory systems? Open circulatory systems are less costly than closed circulatory systems in terms of energy expenditures.
Is the red liquid that circulates in the arteries and veins of humans and other vertebrate animals?
Answer: oxygen .. will be the right answer .
Mollusca | Gastropods-Bivalves-Cephlapods |
Images related to the topicMollusca | Gastropods-Bivalves-Cephlapods |
How is the circulating fluid in the circulatory system of a mollusk typically moved?
Most arthropods and many mollusks have open circulatory systems. In an open system, an elongated beating heart pushes the hemolymph through the body and muscle contractions help to move fluids.
What part of a mollusk secretes its shell?
In mollusks that have shells, such as clams, mussels, and snails, the mantle is what secretes calcium carbonate and a matrix to form the mollusk’s shell. In mollusks that lack shells, such as the slug, the mantle is completely visible.
What is a mantle in mollusks?
mantle, also called pallium, plural pallia, or palliums, in biology, soft covering, formed from the body wall, of brachiopods and mollusks; also, the fleshy outer covering, sometimes strengthened by calcified plates, of barnacles.
Which of the following accurately describes the characteristics of nematodes quizlet?
Which of the following accurately describes the characteristics of nematodes? They are bilaterally symmetrical.
Which of the following accurately describe an annelid’s Chaetae?
Which of the following accurately describe an annelid’s chaetae? They prevent the animal from slipping when it moves. Which of the following best describes the nervous system of an annelid?
Which of the following accurately describe bilateral flatworms quizlet?
Which of the following accurately describe bilateral flatworms? They have dorsoventrally flattened bodies. Most have a digestive cavity with only one opening.
How does gas exchange occur?
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
How does gas exchange occur in animals?
In animals, gas exchange follows the same general pattern as in plants. Oxygen and carbon dioxide move by diffusion across moist membranes. In simple animals, the exchange occurs directly with the environment. But with complex animals, such as mammals, the exchange occurs between the environment and the blood.
Which statement about the gas exchange system in fish is correct Which statement about the gas exchange system in fish is correct?
Which statement about the gas exchange system in fish is correct: It relies on a higher partial pressure of oxygen in water than in air.
What best describes a mollusk?
mollusk, also spelled mollusc, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body.
Gas Exchange In Different Animals | Physiology | Biology | FuseSchool
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Which of the following correctly describe the characteristics of mollusk?
Mollusks are invertebrate animals with soft bodies that are often covered in hard shells. An invertebrate is an animal without a backbone. The three main parts of a mollusk’s body include a muscular foot, a visceral mass, and a mantle. The three main types of mollusks are gastropods, bivalves, and cephalopods.
What do all mollusks have in common?
Molluscs are a clade of organisms that all have soft bodies which typically have a “head” and a “foot” region. Often their bodies are covered by a hard exoskeleton, as in the shells of snails and clams or the plates of chitons.
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