How does the lifestyle of a gastropod differ from that of a cephalopod?Identify adaptations that have evolved in each for its particular lifestyle.

Q: name and describe the craniates that are not vertebrates?

A: Vertebrates are known as craniates because of the presence of a skull or cranium. Craniata includes…

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: What structures of chelicerates are analogous to the antennae of chilopods (centipedes) and other…

A: Introduction: Chelicerates fall under the category of arthropods and consists of scorpions, spiders,…

Q: What are the four largest classes of mollusks, and where do they live?

A: Step 1 Mollusca is a phylum of soft-bodied and shelled animals that possess an unsegmented coelomate…

Q: How are wings and exoskeletons adaptive advantages in terms of the body structure of insects?

A: In this question, we have to mention the adaptive advantage of wings and exoskeleton in the insects.

Q: How are insects distinguished from other hexapods?

A: Arthropods are the invertebrates that form one of the largest groups of phylum in the animal…

Q: To which of the following groups would a species that does not molt, possesses a coelom, and has a…

A: The process of molting refers to the method where one immature organism sheds hair, feathers,…

Q: How is the large size of some cephalopods related to the type of circulatory system they present?

A: Mollusca is the largest marine phylum of the animal kingdom that is characterized by a mantle with a…

Q: How are the echinoderms significant to the marine environment? Relate some (at least two) of their…

A: Echinoderms -- Echinoderms are the members of the phylum Echinodermata . Animals have numerous…

Q: What material is found in the skeleton of all sponges?

A: Sponges are members of the phylum Porifera. Sponges are a multicellular organism that has bodies…

Q: What characteristics is the ancestor of tetrapods thought to have had? Choose all that apply

A: Tetrapods  Tetrapods are the group of animals that have four legs. It the major group of animal and…

Q: What levels of organization do chordates have that sponges do not?

A: The level of organization from simplest to the complex are Cell, tissue, organ, organ system.

Q: What evolutionary advantages are there for invertebrates to have a variety of developmental stages,…

A: Invertebrates are a group of organisms that do not have a vertebral column. The marine invertebrates…

Q: compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What…

A: RH Whittaker gave the five-kingdom classification of living organisms. He used several factors to…

Q: How does the foot of a bivalve differ from the foot of a cephalopod, or the foot of a snail? In what…

A: Bivalve Foot - The bivalve foot is one singular mass. It do not have a flat creeping sole but is…

Q: Which of the following features do sponges lack that some other animals have? (a) segmented body…

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

Q: . What features do all mollusks share?

A: Mollusk also spelled mollusc, is the second-largest phylum of soft-bodied invertebrate animals, with…

Q: Describe how cephalopods swim and how they eat.

A: After arthropods, Mollusca is the second largest phylum in animal kingdom with around 85,000 0f…

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: How sponges are different from other animals ?

A: Sponges are members of the phylum Porifera which are stationary, channel taking care of marine or…

Q: Bivalves lack a mantle (True/False)?

A: The name bivalve refers to the limy shell. They are composed of two pieces or valves, right and left…

Q: Unifying features include shell, mantle, radula, foot, visceral mass Which classes show a loss of…

A: Mollusca is the  second largest phylum of the invertebrate animals.  Answer;1    The mollusk (or…

Q: Why are external skeletons important for soft-bodied invertebrates?

A: Skeleton is the robust structure exhibited in the organism which act as scaffold for the body.…

Q: How are the echinoderms significant to the marine environment? Relate at least three of their…

A:

Q: Why do very few animals eat sponges?

A: Sponges, the individuals of the phylum Porifera, are a basal animal clade as a sister of the…

Q: Cnidarians are...

A: Ans. Cnidarians are diploblastic.  Option 2nd diploblastic is correct

Q: Mollusks secrete a calcified shell from their mantle. True False

A: These are Various characteristics feactures of Mullusca 1. Their symmetry is Bilateral. 2. They are…

Q: How do the skin and respiratory systems of amniotes differ from those of their early tetrapod…

A: Amniotes belongs to the kingdom Animalia and phylum Chordata. They belong to the clade of tetrapod…

Q: ambulacral grooves are present in which animals below? a. a unified skeleton b. no madreporite…

A: Ambulacral grooves are usually found in the starfish which is filled with fluids and contains…

Q: What are two features that put the octopus in the phylum Mollusca?

A: Mollusks are defined as a large group of invertebrates. They generally have soft body, also the…

Q: What is the function of the feet in molluscs? How is the mollusc foot related to the name given to…

A: Phylum Mollusca is the second largest animal phylum which includes over 60,000 species. Molluscs…

Q: Which other invertebrate groups are likely to be the closest relatives of molluscs? What evidence…

A: Invertebrate groups: Invertebrate groups are the group of organisms that does not have a vertebral…

Q: Brachiopods superficially resemble bivalve molluscs, such as clams. How would you explain the…

A: brachiopods are marine invertebrates that comprises the lamp shells. They are places in phylum…

Q: How useful is the study of the nature of body cavity and coelom in theclassification of animals?

A: Animal classification is a system of grouping animals by their similar characteristics. It is also…

Q: The only members of Phylum Mollusca that have a radula are the gastropods (True/False)?

A: The radula is an anatomical structure used by molluscs for feeding. It is analogous to the tongue.…

Q: Are snakes tetrapods? Explain.

A: Tetrapods includes land vertebrates with two pairs of pentadactyl limbs, cornified skin and lungs.…

Q: Which of the following animal groups adopted a sedentary mode of life as adults? O P. Nematoda O P.…

A: sedentary means living in the same place for the whole of one's life; it does not indicate migratory…

Q: What is the importance of torsion and shell coiling in gastropods along with their evolution?…

A: Torsion is the process in which the mantle cavity twists 180 degree with respect to the head and…

Q: What could be the reason behind the successful and remarkable diversification of gastropods over…

A: Gastropods are by far the largest group of molluscs, with more than 62,000 described living.

Q: What levels of organization do chordates have that sponges do not? Select all correct answers.…

A: The complexity in organisms depend on various factors. Body symmetry, level of organization, body…

Q: Which phylum is characterized by animals thathave a segmented body?(A) Cnidaria(B)…

A: Segmented body is the division of body plans in some animals in which the body is divided into the…

Q: The flexibility inherent in a segmented body plan was clearly important to crustacean evolution, but…

A: Evolution is the change in the heritable characteristics of organisms over successive generations.…

Q: Do Cnidarians have a simple or complex body plan?

A: Cnidarians:These are the animals of phylum cnidaria. These are carnivores. These animals have the…

Q: f the lophophore is absent in brachiopods, would you consider them to be members of Mollusca? Why or…

A: Definition: - A lophophore creates a continuous, laminar water flow, induced by the lateral cilia on…

Q: Compare and contrast the anatomical organizationof sponges and cnidarians. How do these…

A: both of these organisms shows simple organization ,sponges have multiple cell types while cnidarians…

Q: What is the number of shells each organism has (Cephalopoda Scaphopoda)?

A: Shell or seashell is a hard protective layer formed by an animal that lives in the sea. Shell is…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.