Progressive dissolution of a pteropod (a small animal with a calcareous shell) in acidified seawater. Figure 7.13 The oceans pH is changing. David Littschwager /Na tional Geogaphic Creative David Littachwager /Na tional Geographic Image Collection

Q: What are shared characteristics of all Molluscs? Choose All That Apply visceral mass mantle muscular…

A: Mollusc is the second largest phylum in animal kingdom. They can be terrestrial or aquatic. They…

Q: Increased acidity makes it more difficult for invertebrates to build structures that contain calcium…

A: The organisms that have vertebral column are called vertebrates. However, the organisms that do not…

Q: Why do sponges fit the definition of animals?

A: Animals are heterotrophic, are made up of cells, are devoid of cell wall in their cells

Q: fishing net brings up a soft bodied animal with a coiled external shell. How can you determine…

A: Cephalopods are only found in the ocean, whereas gastropods are mostly found on land, with a few…

Q: Mollusks, a diverse group of animals, exhibit a range of unique characteristics. Which of the…

A: The study of the classification of organisms is known as taxonomy. All known species are divided…

Q: Bivalves are often used as indicators of environmental quality. Based on your knowledge of bivalve…

A: Introduction Scallops, clams, mussels, and oysters are all classified as bivalve. Their name comes…

Q: We were shown this specimen in an invertebrate zoology class. What is it? The professor told us…

A: It sure does comes under mollusks but I believe that this is not a Bivalve but a Chaetoderm, which…

Q: What would happen if the squid’s environment gradually changed—would all squid die?

A: No, squid will not die if environment  gradually change

Q: Which class of tetrapod animals famously experienced an adaptive radiation into previously unused…

A: The oldest near-complete tetrapod fossils, Acanthostega and Ichthyostega, date from the second half…

Q: Nematode worms and annelid worms share which of the following features?     presence of a…

A: 5 kingdom classifications is a type of classification in which living organisms are classified into…

Q: What is the function of the snail shell used by the hermit crabs? Do you think it could survive…

A: Hermit crabs, distributed worldwide, occur in coastal waters with sandy or muddy bottoms, and…

Q: Explain how each molluscan feature is modified, compared to gastropod and bivalve body plans. 1)…

A: Cephalopods, Gastropods and Bivalvia are all classes of Molluscs. They differ in their habitats. For…

Q: What are shared characteristics that are found in clams? Notable cephalization O Coelomates…

A: Clam is a common name for several kinds of bivalve molluscs. The word is often applied only to those…

Q: Class Gastropoda and Class Bivalvia independently evolved modifications to their body plan that…

A: Both class belong to the phylum mollusca of kingdom animalia.

Q: Clams are a type of... Group of answer choices echinoderm cephalopod arthropod gastropod bivalve

A:

Q: During a survey you spot a soft bodied animal enclosed in a two-piece shell. How can you determine…

A: Humans rely heavily on the marine environment and its inhabitants. We rely on the environment that…

Q: What body form do sea jellies exhibit, medusa or polyp? How do they catch their food?

A: Sea jellies are the invertebrate animals belonging to the phylum cnidaria. They do not have brains,…

Q: Water moving through a sponge is an active or passive process?

A: Introduction :  The biological process of molecules moving against a concentration gradient is known…

Q: Oligochaetes have     well-developed heads     chaetae for locomotion     lungs for…

A: Oligochaetae is a subclass of animals in the phylum Annelida, which is made up of many types of…

Q: Which statement best describes the symmetry of brachiopods compared to bivalves?     Both…

A: Brachiopods are organisms belonging to Phylum Brachiopoda and  bivalves belong to Phylum Mollusca,…

Q: Why do parasites like trematodes produce such large quantities of eggs?

A: The trematode reproduces asexually inside this mollusk host, creating numerous copies of a second…

Q: Compare and contrast anatomy and ecological role of a Bivalve and a Cephalopod. Based on their…

A: Bivalve is a class of marine and freshwater molluscs. They have a flat body and include clams,…

Q: Sponges are also found in freshwater, though not as numerous as the marine varieties. One example of…

A: Spongilla is a kind in sponges of freshwater. They have a resting stage known as gemmules to survive…

Q: Which phylum of animals has a water vascular system connected to tube feet? O Chordata Echinodermata…

A: Kingdom Animalia contains all animals. It is the largest kingdom of Animalia as compared to other…

Q: Pictured is one of the life stages of an Aurelia sp., or Moon Jellyfish, a Scyphozoan. Which life…

A: Introduction cnidarian, also called coelenterate, is a phylum under the kingdom Animalia containing…

Q: Pretend you see an animal at the ocean under a rock. It's 4 cm long. At first you think it might be…

A: The Hemichordate has a worm like body consisting of anterior proboscis, intermediate collar and…

Q: 11) Turbellarians are free-living worms in Phylum Platyhelminthes. They have a thin, very flat body…

A: Turbellarians are mostly free-living but some are ectocommensals or endocommensals or parasites.…

Q: The class of annelid worms which differs from all other classes of annelid worms in that it lacks an…

A: Phylum name: Annelida, commonly known as segmented worm, is a phylum of invertebrates that includes…

Q: Briefly explain the mechanism of action of a sea star’s tube foot.

A: Tube feet, also called podia are the small tubular projections on the oral surface of an echinoderm,…

Q: animals in which of the following classes possess adductor muscles, labial palps, and use their…

A: All these classes that is bivalvia, cephalopoda,  polyplacopora and gastropoda are all the classes…

Q: Match the organism to their body symmetry * sponges A. asymmetrical + earthworm B. bilateral *…

A: Body symmetry means that in how many equal parts an organism can be divided. If an organism is…

Q: Which of the 4 characteristics of Phylum Chordata is visible on this organism?     Pharyngeal…

A: To determine which of the four characteristics of Phylum Chordata is visible on an organism, we need…

Q: Name and describe two adaptations that make squid good predators.

A: Squids have some unique adaptations. Squid are marine cephalopods with elongated bodies, large eyes,…

Q: Do the current conditions in the Gulf of Maine support the growth and survival of the soft shell…

A: Over the last few decades, the Gulf of Maine has warmed faster than 99.9% of the world's oceans.…

Q: Pretend you find a clam-like thing with two shells, about 1 inch across. You open it and see a large…

A: Answer  B. Brachiopod

Q: Animals with calcium-based shells are found in the phylum... Group of answer choices Nematoda…

A: 5 kingdom classifications is a type of classification in which living organisms are classified into…

Q: Humans are most closely related to which of the following? O Sea squirts O Frogs O Sharks O…

A: Humans are most closel related to sea squirts. Sea squirts are among our closest spinless relatives.

Q: What modification do sea anemones possess to increase their digestive surface area?

A: Sea anemones belong to the phylum Coelenterata(Cnidaria). They are aquatic, mostly marine, sessile…