Chondrichthyes ncert
WebNCERT Solutions for Class 11 Biology Chapter 4 Animal Kingdom Solution The presence of Notocard and paired pharyngeal gill slits is characteristic of the phylum chordate. … WebMar 10, 2024 · The Chondrichthyes are a group of jawed fishes with a cartilaginous skeleton. Diverse species of fish are included in the class, such as sharks, rays, skates, …
Chondrichthyes ncert
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Web4.2.11.2 Class – Chondrichthyes. They are marine animals with streamlined body and have cartilaginous endoskeleton (Figure 4.19). Mouth is located ventrally. Notochord is persistent throughout life. Gill slits are separate and without operculum (gill cover). The skin is tough, containing minute placoid scales. WebMar 19, 2024 · Hint:The living fossil is defined as the organisms that are known from the similar characters of the other species or it is known only from the fossil record.They originated from very long years back. These organisms survive but its close relatives resemble its characteristics and are extinct. Complete answer:
WebApr 7, 2024 · The basis for NEET is the study of biology physics and chemistry of classes 11 and 12 and therefore students should first clear their bases which are taught in class 11 NCERT books. Key Concepts That are Important to Study in Relation to Vertebrates- 4.1.1 Levels of Organisation 4.1.2 Symmetry 4.1.3 Diploblastic and Triploblastic Organisation Chondrichthyes is a class of fishes included in the division Gnathostomata as they have jaws. The division Gnathostomata includes all the vertebrates having jaws. Gnathostomata is divided into two superclasses, viz. Pisces (having fins) and Tetrapoda (bear limbs). Pisces is divided into two classes: 1. … See more Some of the prominent examples of cartilaginous fishes are: Sharks 1. Scoliodon (Dogfish) 2. Rhincodon(Whale shark) 3. Charcarodon charcharias (The great white shark) Rays 1. Trygon(Stingray) 2. … See more
WebChondrichthyes Recommended MCQs - 264 Questions Animal Kingdom Zoology Practice questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, NCERT Exemplar Questions and PDF Questions with answers, solutions, explanations, NCERT reference and difficulty level 8527521718 Online … WebWhich of the following statement/s about chondrichthyes are incorrect? 1) Notochord is persistent throughout life 2) Endoskeleton is made up of bones 3) Operculum present 4) Skin is covered by placoid scales (1) All of the above (2) None of the above (3) 1 and 4 are incorrect (4) 2 and 3 are incorrect Animal Kingdom Zoology Practice questions, MCQs, …
WebAug 14, 2024 · Chondrichthyes refers to a class of fishes that includes those with a cartilaginous skeleton while Osteichthyes refers to a class of fishes that includes those with a bony skeleton. Also known as …
WebMar 16, 2024 · chondrichthyan, (class Chondrichthyes), also called chondrichthian, any member of the diverse group of cartilaginous fishes that includes the sharks, skates, rays, and chimaeras. The class is one … greyhound backpackWebnoun plural. Chon· drich· thy· es kän-ˈdrik-thē-ˌēz. : a class comprising cartilaginous fishes with well-developed jaws and including the sharks, skates, rays, chimeras, and extinct … fidelity tysons office hoursWebNCERT बूटी - Class Chondrichthyes - Animal Kingdom Class 11 Biology Magnet Brains 9.1M subscribers Subscribe 19K views 2 years ago Class 11 Biology (New Session 2024-23) Complete CBSE... fidelity \u0026guaranty annuities and lifeWeb(1) Viviparous Mammalia (2) Possess a mouth with an upper and a lower jaw Chordata (3) 3-chambered heart with one incompletely divided ventricle Reptilia (4) Cartilaginous – endoskeleton Chondrichthyes Animal Kingdom Zoology (2024) NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and … greyhound bag feesWeba) Chondrichthyes have mainly marine habitat, and their body is streamlined. They have a cartilaginous endoskeleton. Examples are scoliosis and Trygon. greyhound badgeWebNCERT Solutions. NCERT Solutions For Class 12. NCERT Solutions For Class 12 Physics; NCERT Solutions For Class 12 Chemistry; ... Common characteristics shared by Chondrichthyes and Osteichthyes Cartilaginous fishes and bony fishes share four common characteristics like streamlined body, two-chambered heart, poikilothermy and are … greyhound back leg weaknessWebFeb 1, 2024 · Class Chondrichthyes Pisces Class 11 NCERT NEET. They are marine animals with streamlined body and have cartilaginous endoskeleton. Mouth is located … greyhound back on the road