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A notochord is a flexible rod-like cord of cells that provides the main support for the body of an organism during its embryonic stage. 4. Class – Cyclostomata. Cranium and vertebral column are composed of cartilage. They have an elongated body bearing 6-15 pairs of gill slits for respiration. Science Part II Solutions Solutions for Class 10 Science Chapter 6 Animal Classification are provided here with simple step-by-step explanations. Class - Chondrichthyes:- They are marine fishes with cartilaginous endoskeleton. CLASS CYCLOSTOMATA. These are cold-blooded animals. They have gill slits for respiration. Marine, but migrate for spawning to fresh water. Elongated body without scales and paired fins. No stomach digestive system. Ascaris (Round worm), Wuchereria (Filaria worm), Ancylostoma (Hookworm). Body is slender and eel-like bearing six to fiten pair of gill slits for respiration. Class – Cyclostomata: All living members of the class Cyclostomata are ectoparasites on some fishes. Cyclosiomes have a sucking and circular mouth without jaws; Their body is devoid of scales and paired fins; Cranium and vertebra! They can be found from the equator to the poles. All are ectoparasites on some fishes. (ix) Examples. Gnathostomes, the jawed chordates, belong to either the superclass Pisces (the fish) … ADVERTISEMENTS: In this article we will discuss about the classification of phylum chordata with its characters. a) Class – Cyclostomata. Write any two members of the Phylum Aschelminthes which are found parasitic on Human beings. Pteraspidomorphi (fin-shield) and Order 4. C) Sub Phylum –Vertebratal Craniata . These videos is based on TRICKS. 2.Acorn worms belongs to class: (a) Enteropneusta (b) Planctosphaeroidea (c) Pterobranchia (d) None. Gymnolaemata (Allman).- Lophophore circular, with no epistome. Elongated body without scales and paired fins. ADVERTISEMENTS: Difference between Agnatha and Gnathostomata are given below: Related posts: Difference between Metatheria and Eutheria 10 Important Characteristics of Cyclostomata Classify Pisces upto sub-class giving salient features and examples What is the difference between Cartilaginous Fish and Bony Fish? Pharyngeal gill slits are present. Mouth ventral, oval, and suctorial. All living members of the class Cyclostomata are ectoparasites on some fishes. Cyclosiomes have a sucking and circular mouth without jaws; Their body is devoid of scales and paired fins; Cranium and vertebra! Cyclostomata; Super class: Gnathostomata, Super class pisces, Class: Chondricthyes, Class: ... two examples each); Flagellar & Ciliary movement - Effective & Recovery strokes in Euglena, Synchronal & Metachronal movements in Paramecium; Reproduction: Definition, types. Fig. Body is slender and eel-like bearing six to fiten pair of gill slits for respiration. Their body is devoid of scales and paired fins. Figure 10. Elongated body without scales and paired fins. Fossil agnathans, covered in an armour of bony plates, are the oldest known fossil vertebrates. This characteristic feature is named. Cranium and vertebral column are composed of cartilage. They are marine but migrate for spawning to freshwater. Circulation is of closed type. Class: Cyclostomata (G.cyklos–circle; stomata-mouth) All members of cyclostomata are primitive, poikilothermic, jawless aquatic vertebrates and are ectoparasites on some fishes. Include fishes, body is covered with scales, have fins but no limbs. column are cartilaginous. 8. Class Osteichthyes (Bony fish) FISHES. The exoskeleton 7. See more. Asexual Reproduction: Transeverse binary fission in Paramecium & Longitudinal Several examples of chordates are pictured in Figure below. Cyclostomes have soft skin which is without any scales. Hopefully, through our notes on animal kingdom class 11 chapter, we have helped you understand the topic in a detailed manner. Chondrichthyes--sharks, batoids, chimaeras 2. Circulation is of closed type. The body is round and elongated like an eel but paired fins are absent. Start studying Animal kingdom. , In Cuvier's system of classification, the third prime division of the animal kingdom, including all segmented invertebrates in which the body is made up of a series of rings (metameres), is endowed with a ganglionated nervous system, and possesses distinct respiratory organs. General characteristics of all fishes (class Agnatha, class Chondrichthyes, class Osteichthyes) Gills “Water breathing” through gills which are modified pharyngeal slits. cyclostome: Any of various fishes lacking jaws and true teeth and having a circular sucking mouth, including the hagfishes and the lampreys. The adult lamprey may be characterized by a toothed, funnel-like sucking mouth. The air trapped within the fur provides insulation to help to maintain the homoiothermy of this class. Question 2. Q1. A sucking and circular mouth is present. So, the correct answer is 'Petromyzon'. Cyclostome definition, belonging or pertaining to the Cyclostomata, a subclass of jawless, eellike, marine vertebrates of the class Agnatha, comprising the lampreys and hagfishes. Class 2. 4.18). Their body is devoid of scales and paired fins. In some animal groups, the body is found divided into compartments with serial repetition of at least some organs. The main difference between Chondrichthyes and Osteichthyes is that the Chondrichthyes is the class of bony fish whose endoskeleton is made up of cartilages whereas Osteichthyes is the class of cartilaginous fish whose endoskeleton is made up of bones.Furthermore, Chondrichthyes can only be found in marine water while Osteichthyes can be found in both fresh and … The jawless fishes, traditionally considered a single class, Agnatha, are the oldest known vertebrates. Their skin is soft and without any scale. They have been dated from the Silurian and … The notochord is seen either throughout or at some stage of their life. Cyclostomata are the poorly evolved first class of vertebrate animals. Later, it was found that lampreys have more similarities with jawed forms (gnathostomes), such as, presence of lateral eyes, regulation of heartbeat etc. What is the name for the scales that cover a shark's body? Examples: Bhetki, Ruhu, Sole, Lata, etc. 1. They have an elongated body bearing 6-15 pairs of gill slits for respiration. Myxine: Members belonging to the order Myxiniformes are commonly known as hagfishes. Mouth is circular without jaws and suctorial. Endoskeleton is cartilaginous. The chordates were originated from a fish-like ancestor, very similar to the larva of the Ascidia (Tunicata) and it is assumed that they became the ancestor of the chordates by retaining the larval form throughout the life. Exoskeleton : Soft skin without any scales. Examples: Hagfishes. (f) Examples: Petromyzon, Myxine, etc. WATCH more videos about tricks log on my channel. CLASS CYCLOSTOMATA. They have an elongated body bearing 6-15 pairs of gill slits for respiration. How do members of the Superclass Gnathostomata differ from members of the Superclass Cyclostomata? Ascaris - Intestinal roundworm (in small intestine). A. Labeo rohita belongs to class Osteichthyes. Tail diphycercal. Cyclosiomes have a sucking and circular mouth without jaws; Their body is devoid of scales and paired fins; Cranium and vertebra! They are marine animals with streamlined body and have cartilaginous endoskeleton. Four limbs are present in tetrapoda for locomotion. C. Rana tigrina belongs to class Amphibia. Give two examples of Cyclostomata. They have an elongated body bearing 6-15 pairs of gill slits for respiration. Notochord persist throughout life. E.g. The chordates were originated from a fish-like ancestor, very similar to the larva of the Ascidia (Tunicata) and it is assumed that they became the ancestor of the chordates by retaining the larval form throughout the life. Chapter 18 study guide. Lampreys and hagfish are in this class. Some Prehistoric Chondrichthyans Key: This page last updated 6 June 2021 by Udo M. Savalli () Class Cyclostomata (Circular mouthed fishes) ... CBSE Class-11 Revision Notes and Key Points. Cyclostomata (Marsipobranchii), Subclass 1. Endoskeleton is cartilaginous. Characteristics. They are also called jawless fishes (not true fishes). Pisces: Class Pisces - definition. They lay eggs [oviporous]. These solutions for Animal Classification are extremely popular among Class 10 students for Science Animal Classification Solutions come handy for quickly completing your homework and preparing for exams. The body is devoid of scales and paired fins. Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students.ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Single ,tubular spinal . The class name Cyclostomata (Gr., cyclos = circular, stoma = mouth) is given due to circular mouth.8. Elongated, eel-like but lacking lateral fins Round, jawless mouth ... See also additional examples of acanthodian & chondrichthyan fossils. What are the types of Aquatic Adaptation? Jaws, fins, and stomachs are absent in the jawless fish. Class Cyclostomata Myxine (Hagfish) All living members of the class Cyclostomata are ectoparasites on some fishes.They have an elongated body bearing 6-15 pairs of gill slits for respiration. Later, it was found that lampreys have more similarities with jawed forms (gnathostomes), such as, presence of lateral eyes, regulation of heartbeat etc. Notochord is present in the body. Cyclostoma 2. Class Cyclostomata — Cyclostomes. The only living agnathans are lampreys and hagfishes (class Cyclostomata), which are parasites or scavengers. B. Scoliodon belongs to class Chondrichthyes. Osteichthyes is a class of fishes included in the division Gnathostomata, which includes all the vertebrates having jaws. 1.Class- Cyclostomata : Body Structure: These animals have jaw-less mouth provided with sucker. (2) The mouth is circular and jawless. An operculum on each side covers the filamentous gills. Paired fins and scales are absent. Class – Cyclostomata: All living members of the class Cyclostomata are ectoparasites on some fishes. Cartilaginous cranium and vertebral column. This includes two sub phylum- 1. An example of metagenesis is the reproduction cycle of a cnidarian.The cnidarians exhibit alternation of generations in which one generation is the Polyp form while the other is the Medusa form Class: Cyclostomata (G.cyklos – circle; stomata – mouth) All members of cyclostomata are primitive, poikilothermic, jawless aquatic vertebrates and are ectoparasites on some fishes. A Hagfish protuding from a sponge (Source: NOAA) In older classifications, both lamprey and hagfish were grouped together as Cyclostomata due to the presence of round/circular mouth. b) Lamprey and hagfish are examples of this class c) Their digestive system is complete with stomach, food pipe and intestines d) Their circulatory system is closed with a 2 chambered heart Answer: c Clarification: Vertebral column is made of cartilage in Cyclostomata. Class - Cyclostomata:-They have suctorial and circular mouth without jaws. on a rat’s tail) are rare. C. Rana tigrina belongs to class Amphibia. Gills can absorb lower concentrations of available oxygen. Class AMPHIBIA. Cyclostomata is a group of agnathans that comprises the living jawless fishes: the lampreys and hagfishes. Fertilization is external, locomotes with fins. The body … Class - Cyclostomata:-They have suctorial and circular mouth without jaws. Cyclostomata - no jaw so the mouth cannot close, retractable teeth - hagfish and lampreys; Chondrichthyes - cartilaginous fish, skeleton made of cartilage rather than bone, gill slits at the side of the head, urea retained in the blood for osmotic balance. Class Amphibia 5. Thermoregulation : Cold blooded animals; Appendages: Paired appendages are absent. D. Petromyzon belongs to class Cyclostomata under superclass Agnatha (the Jawless vertebrates). Unusual and Little-known Facts About Mammals. Skin soft, smooth, containing unicellular mucous glands but no … column are cartilaginous. The largest mammal on land is the African elephant. Notochord is persistent throughout life and separated gill slits are without operculum. The body is devoid of scales and paired fins. Thermoregulation : Cold blooded animals; Appendages: Paired appendages are absent. (gas exchange between water and blood). Rhabdopleura belongs to class: 1. Examples. 1; NCERT Important Questions Class 9 Science biology Chapter 7 Important NCERT Extra Questions Chapter 7 Diversity in Living Organisms NCERT Book Extra Questions for Session 2021-2022 CBSE Board and UP Board Others state Board. They have gill slits for respiration. Endoskeleton is cartilaginous. Sucking and circular mouth without jaws. The body is devoid of scales and paired fins. cyklos-circularal; stome-mouth). D. Petromyzon belongs to class Cyclostomata under superclass Agnatha (the Jawless vertebrates). 1. (c) Paired appendages are absent. The exoskeleton 1.Class- Cyclostomata : Body Structure: These animals have jaw-less mouth provided with sucker. The tiger is also from the class Mammalia, order Carnivora, and family Felidae, meaning it is a meat-eating cat. Jaws and paired limbs (fins) present. Class Osteichthyes 4. Cyclostomata is the ectoparasite that survives on fishes underwater. Since the release of the UCSC hg19 assembly, the Homo sapiens mitochondrion sequence used as "chrM" in the Genome Browser, NC_001807 , has been replaced in GenBank with the record NC_012920 , the Revised Cambridge Reference Sequence (rCRS) . The fins are supported by fin-rays. Petromyzon(Lamprey), Myxine (Hag fish). … Median fins with cartilaginous fin rays, but no paired appendages. (d) Endoskeleton is cartilaginous. All living members of the class Cyclostomata are ectoparasites on some fishes. All living members of the class Cyclostomata are ectoparasites [ives on the outside of its host] on some fishes. Urochordata and 2. Cranium and vertebral column are cartilaginous. Kingdom Animalia Biren Daftary 8/24/2016 BIREN DAFTARY 2. Examples: Scoliodon (Indian shark), Narcine (electric ray), saw fishes, etc. Their skin is covered with scales/plates. In some animal groups, the body is found divided into compartments with at least some organs/ organ repeated. 4.18). Body is slender and eel-like bearing six to fifteen pair of gill slits for respiration. B) Sub Phylum –Cephalochordata. The name Cyclostomata means "round mouths". Protochordates or Acraniata is a group of primitive animals that do not have a vertebral column. Scales and paired fins are absent. Cyclostomes have a sucking and circular mouth without jaws (Fig. Answer: Ascaris (Roundworm) Wuchereria (Filaria worm) Question 3. (pronoun) Dictionary ! 9. (3) They have 1-16 pairs of gill slits. (1) They occur in the seas and large rivers. Jawless fishes are included in the division Agnatha and the class Cyclostomata. Class Reptilia 6. All living members of the class Cyclostomata are ectoparasites on some fishes. Animal Kingdom class 11 Notes Biology. (e) Most of the animals are ectoparasites. Conclusion. All the existing members of the class Cyclostomata are ectoparasites on some fishes. ... CLASS B : CYCLOSTOMATA. These are cold-blooded animals. Planctosphaerara pelagica belongs to class: (a) Pterobranchia (b) Planctosphaeroidea (c) Enteropneusta (d) None. ... A. The class Cyclostomata belongs to the phylum Chordata of the animal kingdom. 3. (8) Class Mammalia. 3. A) Sub Phylum –Urochordata. Identify the two classes of cartilaginous fish and give two examples from each class. CLASS – CYCLOSTOMATA. Cyclostomata (The Circular mouthed fishes: Gr. Petromyzontia and Class 2. (5) Unpaired fins are present. Embryonic development takes place in soil. Pisces are the fishes under this class with scales and plates. Cephalaspidomorphi (head shield form), Order 3. They have gill slits for respiration. Planctosphaerara pelagica belongs to class: (a) Pterobranchia (b) Planctosphaeroidea (c) Enteropneusta (d) None. Kingdom Animalia 11th std 1. Paired appendages are absent in cyclostomates. Circulation is of closed type. (pronoun) Dictionary ! They don’t have a stomach. ... placed in the superclass Cyclostomata. Common in children. Cyclostomata - jawless vertibrate - petromyzon Class – Pisces These are fish. Orders: ... Cyclostomata, Ctenostomata, Cheilostomata), Phylactolaemata. Cyclostomes have a sucking and circular mouth without jaws. Examples: Petromyzon (Lamprey) and Myxine (Hagfish). Mouth is circular without jaws and suctorial. Class - Chondrichthyes:- They are marine fishes with cartilaginous endoskeleton. They have a circular mouth and hence named Cyclostomata. Gills 5 to 16 pairs in lateral sac-like pharynx pouches, thus another class name Marsipobranchii. 4.17.Cyclostomata: Petromyzon 2. Mouth is … Members of this class of fish don't have paired fins or a stomach. The only living agnathids make up the class Cyclostomata, fish that lack scales and have a round mouth like a suction cup. Phylum – Chordata-Class – Cyclostomata :- jawless vertebrate - Petromyzon; Phylum – Chordata-Class – Chondrichthyes :- … Fishes are of two main types: cartilaginous and bony fishes. Class Chondrichthyes. If you have any query regarding NCERT Solutions for Class 11 Biology at Work Chapter 4 Animal Kingdom, drop a comment below and we will get back to you at the earliest. Class III Osteichthyes or Actinoptergh: This class includes most of the common fishes. Exoskeleton : Soft skin without any scales. Class – Cyclostomata: All living members of the class Cyclostomata are ectoparasites on some fishes. Class - Cyclostomata | All characteristics of class cyclostomata explained with examples | Figure 10. Class – Cyclostomata. Class II. Cyclosiomes have a sucking and circular mouth without jaws; Their body is devoid of scales and paired fins; Cranium and vertebra! 4.2.11.1 Class – Cyclostomata. A sucking and circular mouth is present. Cyclostomata / s ɪ k l oʊ ˈ s t ɒ m ə t ə / is a group of agnathans that comprises the living jawless fishes: the lampreys and hagfishes.Both groups have jawless mouths with horny epidermal structures that function as teeth, and branchial arches that are internally positioned instead of external as in jawed fishes. Bony skeleton is present throughout the class. There are 6 -15 pairs of gill slits for respiration. They have gill slits for respiration. Marine, but migrate for spawning to fresh water. The body is elongated. Second stage larva (rhabditiform) is infective. ... Then, what are 3 examples of jawless fish? Order Gymnophiona (Apoda) —165 species of burrowing caecilians, elongated bodies, limbless, dermal scales embedded in annular folds of skin. Class Cyclostomata. Examples: Petromyzon (Lamprey) and Myxine (Hagfish). Adults and larvae have a notochord. Gymnolaemata (Allman).- Lophophore circular, with no epistome. Cephalochordata. Characteristics of Cyclostomata. It can grow up to 3.3 meters in height and weigh around 13,000 pounds. articulata In zoology, a name variously applied. (4) Head and brain are poorly developed. NCERT Solutions In Text And Video From Class 9 To 12 All Subject Agnatha: Cyclostomata, Gnathostomata Definitions With Examples ☞ Class 12 Solved Question paper 2020 ☞ Class 10 Solved Question paper 2020 The body is elongated. Nostril is single and median. 1. Myxinoidea, Subclass 2. They are exclusively marine. Cyclostomata have circular jawless mouth with suckers. Learn vocabulary, terms, and more with flashcards, games, and other study tools. These two classes may be grouped together in the superclass Cyclostomata. CBSE quick revision note for class-11 Mathematics, Physics, Chemistry, Biology and other subject are very helpful to revise the whole syllabus during exam days. They obtain oxygen dissolved in water by using gills. Class Chondrichthyes 3. Endoskeleton fibrous and cartilaginous. We have not replaced the chrM sequence in the hg19 Genome Browser. 12.1) is found buried in … Examples include Gallus domesticus [domestic fowl (chicken)]; and Corvus corone (carrion crow). Due to great diversity in chordate forms, different schemes of classification have been proposed by a number of taxonomists from time to […] Cyclostomes have a sucking and circular mouth without jaws and body is devoid of … OBJECTIVES OF HEMICHORDATA & CHORDATES. Both groups have jawless mouths with horny epidermal structures that function as teeth, and branchial arches that are internally positioned instead of external as in jawed fishes. Class … What are examples of organisms in the Class Chondrichthyes? Amphibia: Capable of living on both land and water but need water for some stages of the life cycle. 4. Body shape – elongated body; Respiration – 6-15 pairs of gill slits. (a) Chordates (b) Hemichordates (c) Molluscs (d)Echinoderms. About 15 species Myxine, Eptatretus (= Bdellostoma), Paramyxine. Ostracodermi that includes Order 1. Petromyzon(Lamprey), Myxine (Hag fish). Circulation is of closed type. Heart is present on ventral side of body. The diagnostic synapomorphy is a pedicle developed from a rudiment. All the members of this class are ectoparasites on some fishes. Paired fins and scales are absent. Anaspida (no shield), Order 2. Fins are present in pisces for locomotion. Circulation is of closed type. Class – Cyclostomata: All living members of the class Cyclostomata are ectoparasites on some fishes. Orders: ... Cyclostomata, Ctenostomata, Cheilostomata), Phylactolaemata. Their skin is soft and without any scale. two or three examples Phylum : Chordata Sub phylum: Urochordata Sub phylum: Cephalochordata Sub phylum : Vertebrata Super class: Agnatha Class Cyclostomata Super class: Gnathostomata Super class pisces Class: Chondricthyes Class: Osteichthyes Tetrapoda Class: Amphibia (Include Frog as a type study strictly adhering to NCERT text book) Cyclostomes have a sucking and circular mouth without jaws (Fig. Myxine (Fig. A Hagfish protuding from a sponge (Source: NOAA) In older classifications, both lamprey and hagfish were grouped together as Cyclostomata due to the presence of round/circular mouth. Body elongated, eel-like. Q45. Our career experts at Leverage Edu are here to assist you in choosing the right career path and getting started on it. column are cartilaginous. Cyclostomes are marine but migrate for spawning to fresh water. All are ectoparasites on some fishes. All the hagfishes and lampreys make up the class Cyclostomata. Two chambered heart, breathe by means of gills, cold blooded or poikilothermal. Respiration is through lungs, skin and gills. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Their body is devoid of scales and paired fins. Medical definition of Cyclostomata: a class or order of primitive vertebrates that have a large jawless sucking mouth, no limbs or paired fins, a wholly cartilaginous skeleton with persistent notochord, and 6 to 14 pairs of gill pouches and that include the lampreys and the hagfishes. The Class – Cyclostomata has following features : (a) These animals have jaw -less mouth provided with sucker. Chordates are broadly divided into two groups- Protochordates and Vertebrates. The skin is hard with scale like structures. … Order Caudata (Urodela) —425 species of salamanders, tailed amphibians, usually with two pairs of limbs. (b) Their skin is soft and without any scale. CLASS – CYCLOSTOMATA. Which of the following is not a deutrostome? The chordates form a large heterogeneous group of members differing widely from one another in many respects. D) Sub Phylum -Vertebrata is divided into six classes. Diversity of Chordates. ... Give a few examples of organisms in this Class.... YOU MIGHT ALSO LIKE... 50 terms. Class Mammals . Habitat – ectoparasites on some fishes. amphibia, reptilia, aves and mammalia. So, the correct answer is 'Petromyzon'. EXAMPLES . Menu ... Gymnolaemata Sentence Examples. The only surviving members of this group are the hagfish (class Myxini) and lampreys (class Hyperoartia). Introduction • Animals classified into chordates & non-chordates • Chordates have a ‘notochord’ • Non-chordates do not have a ‘notochord’ • Notochord is a rod like structure made up of tightly packed vacuolated cells which run along the mid dorsal line • Animals showing a vertebral … 2. Cranium and vertebral column are cartilaginous. These six species illustrate the diversity of the phylum Chordata. 4.17.Cyclostomata: Petromyzon 2. Class Cyclostomata They have an elongated body bearing 6-15 pairs of gill slits for respiration. It is composed of about 3,000 genera assigned to 75 superfamilies and grouped into 10 orders. Super-class tetrapoda is further divided into four classes, viz. Cartilaginous fishes: Skeleton is made up of cartilage. Zool final test 3. Class Cyclostomata 2. Sucking and circular mouth without jaws. column are cartilaginous. 15 terms. 4. The Rhynchonellata is the largest class of brachiopods. Scoliodon (Dogfish) Pristis (Saw fish) Carcharodon (Great white shark) Trygon (Sting ray- has poison sting) Torpedo (Electric ray- has electric organ). All the subclasses of the phylum Vertebrata have a few similarities. pisces and tetrapoda. A notochord is found in all chordates. Mammals are a class of vertebrates (animals which have a backbone) which began to evolve on Earth around 200 million years ago. There is only one class; Cyclostomata in the sub-phylum Agnatha. 3. Mouth – Cyclostomes have a sucking and circular mouth without jaws. Intestine, typhlosole, with the fold. There are 6 -15 pairs of gill slits for respiration. Cartilaginous cranium and vertebral column. All the existing members of the class Cyclostomata are ectoparasites on some fishes. Lampreys, hagfish, and slime eels belong to this group. Gnathostomata is divided into two super-classes, viz. General characters: 1. Agnatha (/ ˈ æ ɡ n ə θ ə, æ ɡ ˈ n eɪ θ ə /, Ancient Greek ἀ-γνάθος 'without jaws') is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct (conodonts and ostracoderms) species.The group is sister to all vertebrates with jaws, known as gnathostomes.. Vertebrata (classes – cyclostomata, chondrichthyes, osteichthyes, amphibia, reptilia, aves and mammalia) – three distinguishing characters with two examples of each). Reptilia: Creeping or crawling mode of locomotion. Examples include Dog, Kangaroo, Platypus, Rat, Elephant, Tiger, etc. A taxonomic class within the phylum Bryozoa — ectoproct bryozoans. Pterichthyomorphi. The amphibians class can easily survive in aquatic and terrestrial environments. [1] The name Cyclostomata means "round mouths". All are ectoparasites on some fishes. The jawless fish include the lampreys and the hagfish. We hope the NCERT Solutions for Class 11 Biology at Work Chapter 4 Animal Kingdom, help you. NCERT Exemplar Class 11 Biology Chapter 4 Animal Kingdom. Class: Cyclostomata (G.cyklos – circle; stomata – mouth) All members of cyclostomata are primitive, poikilothermic, jawless aquatic vertebrates and are ectoparasites on some fishes. Transmission of infective stage is through embryonated egg takes place by contaminated food and water. CLASS CYCLOSTOMATA. Examples will vary; those below are broad groups given in the text. Cyclostomata--hagfish, lampreys. Representative Types of Cyclostomata: 1. Classification of Class Cyclostomata up to order 1. This characteristic feature is called. Menu ... Gymnolaemata Sentence Examples. E.g. The mammals are characterized by the possession of hair (fur): scales (e.g. The definition of metagenesis is the reproduction cycle of an organism that alternates between sexual and asexual generations. Summary. CLASS CYCLOSTOMATA. Examples: Petromyzon, Myxine, etc. Fig. Class Aves 7. 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