Members of Chondrichthyes differ from members of Osteichthyes by having (a) ________. a. jaw b. bony skeleton c. cartilaginous skeleton d. two sets of paired fins

Q: The animals above are members of EE Ruppert&RS Fox which chordate subclade? A. Cepahlochordata B.…

A: Chordates are characterized by notochord, dorsal hollow nerve cord and paired pharyngeal hill slits.…

Q: Cartilaginous axial skeleton without paired fins and scales in adults are features of a.Petromyzon…

A: Petromyzon

Q: Articulate brachiopods are so-called because: a. they can communicate with one another b. they are…

A: Brachiopods are group of animal belonging to lophotrocozoan animals. They are marine and possess…

Q: A- The animals above are members of EE Rp A. Echinodermata B. Hemichordata C. Pterobranchia D. A & B…

A: Answer: The animals above are members of - E) B&C. The animals are belong to phylum-…

Q: Members of Chondrichthyes are thought to be descended from fishes that had.. .....................

A: Chondrichthyes includes sharks, rays, and skates, as well as sawfish and a few fish species known as…

Q: Explain why remipedians were once thought to resemble ancestral crustaceans.

A: Remipedia is a class of small, marine, cave-dwelling crustaceans characterized by a short head and a…

Q: Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata…

A: Chordate can be defined as the animal that will belong to the phylum Chordata. There is some period…

Q: Which of the following classes of arthropod possess chelicerae? a. Chilopoda b. Crustacea c.…

A: Answer is d.) Chelicerata.

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: Which of the following groups includes all of the others? a. Protostomes c. Eumetazoans b.…

A: Taxonomy is that the observe of distinguishing completely different organisms, classifying them into…

Q: Suppose you find an animal that has a lateral line and a skeleton made out of cartilage. What class…

A: Every animal phylum poses some unique characteristics that are used for the identification of that…

Q: Which of the ff. has a repugnatorial gland and coils into a ball when disturbed? A. Diplopod B.…

A: Various species under the arthropoda phylum are classified under Myriapoda. These possess multiple…

Q: How different are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need…

A: The Chondrichthyes include rays, sharks, and skates that have a cartilaginous skeleton with calcium…

Q: Nematodes once were thought to be closely related torotifers due to the presence of a pseudocoelom…

A: Nematodes:         Nematodes can be otherwise known as roundworms, which comes under the hood of…

Q: Echinoderms have _____. a. triangular symmetry b. radial symmetry c. hexagonal symmetry d.…

A: A major group of marine animals are echinoderms. They are known for their spine like skin. These…

Q: Which of the following is not characteristic of arthropods? (a) exoskeleton (b) pseudocoelom (c)…

A: Answer is b.) pseudocoelom.

Q: Collar cells (choanocytes) are characteristic of (a) poriferans (b) cnidarians (c) most coelomates…

A: Cnidarians :  for example : hydra, jelly fish etc are aquatic animals, they have cnidocytes to…

Q: Which of the following is the correct classification for the following chordate animal: This animal…

A: Fishes  Fishes are aquatic Gill bearing animal belonging to the phylum chordata and sub phylum…

Q: All vertebrates are chordates but all chordates are not vertebrate? Justify the statement?

A: Chordates are those animals that have rod like notochord.In some chordates, the notochord is…

Q: Which of the following characteristics is/are associated with amphibians? (a) amnion (b) placoid…

A: Answer- Amphibian is a class of animals that are the part of chordates and they are the first…

Q: Which of the following does not occur? a. radially symmetrical diploblast b. diploblastic…

A: The organisms which possess a body cavity lying between the body wall and the intestinal canal…

Q: What features made it difficult for biologists to recognize echiurans and siboglinids as members of…

A: Annelid is the ancient and ecologically important animal phylum. The members form the dominant…

Q: Torsion is a unique characteristic of the a. bivalves. b. gastropods. c. chitons. d.…

A: Every group of organisms has some special characteristics that make them unique from others.…

Q: Both cartilaginous and bony fishes have_ a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The name vertebrate comes from the Latin word vertebrae, which refers to the spine's bones. Animals…

Q: Which of the following about caecilians are TRUE? Select one: a. They are legless, worm-like and…

A: Step 1 Amphibia is a class of first terrestrial tetrapods that lead a dual life in water as well as…

Q: Arthropods are the first phyla to possess: A)a brain B)an exoskeleton C)a complete digestive…

A: The organisms belonging to the phylum Arthropoda are characterized by the presence of pairs of…

Q: Inarticulate brachiopods

A: Answer: Inarticulate brachiopods = These are the brachiopods which have untoothed hinges , but a…

Q: Pharyngeal gills of enteropneust hemichordates and chordates are A. involved in filter feeding B.…

A: Hemichordates belong to an unique phylum of marine invertebrates that mostly filter feed by their…

Q: Both cartilaginous and bony fishes have______ . a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The term vertebrate is derived from the word vertebrae, which refers to the bones that make up the…

Q: Heterocoelous centrum is a characteristics of- (A) Amphibia (B) Reptilia (C) Birds (D) Mammalia

A: Introduction - Multicellular eukaryotic animals make up the animal kingdom. Invertebrates and…

Q: Compare the body plan of Dugesia and cnidarians. Aside from differences in symmetry, what other…

A: Thank you for the question  Answer :Dugesia belong to phylum Platyhelminths.  The features seen in…

Q: You discover a new species of animal that has hair and three inner ear bones. What class would you…

A: Answer E) Chordata B) Mammalia

Q: Cubozoans are ________. a. polyps b. medusoids c. polymorphs d. sponges

A: BASIC INFORMATION  PHYLUM CNIDARIA It is one of the phylum in the animal kingdom which constitutes…

Q: Which of the following could be considered the most recentcommon ancestor of living tetrapods?(A) a…

A: The term “tetrapods” means “four feet”. The tetrapods are the animals that belong to the superclass…

Q: A member of the protostome group of animals   a. has no symmetry.   b. has an anus derived from…

A: Protostome: are the group of animals, which include the arthropods, and other mollusks and worms and…

Q: explain the meaning of the following characteristics of animals a)triploblastic b)bilateral…

A: Zoology is the part of science that concentrates on the animal kingdom, including the design,…

Q: Which of the following classes is NOT a member of the Amniota? O A) Reptilia B) Amphibia C) Mammalia…

A: *Amniotes belongs to clade tetrapod vertebrates that consists of sauropsids and synapsids. *…

Q: You find a worm and discover that it has no coelom, no nephridia and a mouth but no anus. What must…

A: Xenacoelomorphs are invertebrate organisms that also lack true body cavities and are thus…

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: Which of the following occurs only in chordates O A. notochord O B. pharyngeal gills O C. dorsal…

A: All options are correct . chordates have all these .

Q: Which of the following occurs only in chordates O A. notochord B. pharyngeal gills C. dorsal hollow…

A: Notochord and dorsal hollow nerve cord found exclusively in chordates.

Q: Which of the following occurs only in chordates A. notochord B. pharyngeal gills O C. dorsal hollow…

A: Chordata is the phylum of the animal kingdom that includes a large number of animal species,…

Q: Members of Chondrichthyes are thought to be descended from fishes that had ________. a. a…

A: Sharks, rays, and skate, as well as sawfishes and a few handful fish species known as chimaeras, or…

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: Which of the following is the correct classification for the following chordate animal: This is a…

A: Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Superclass: Agnatha Please find your answer…

Q: Lungfish lack A) Fingers and toes B) Vertebrae C) Choanae D) Jaws

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

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.