Witryna14 kwi 2016 · This group is officially referred to as Chondrichthyes which includes sharks, skates, rays, and chimeras. Osteichthyes, or bony fishes, include the remaining fish-like species who have …

Osteichthyes - Definition and Examples - Biology Online Dictionary

Witryna25 maj 2024 · Although this lesson marks the end of the beginning of the vertebrate story, we still have some bones left to pick! In this last lesson we’ll look at the features of the Osteichthyes (the bony fishes) and examine the differences between two immensely successful vertebrate groups; one that conquered the water: the Actinopterygii (ray … Witryna4 maj 1999 · Osteichthyes excludes the jawless fishes of the class Agnatha ( hagfishes and lampreys) and the cartilaginous fishes constituting the class Chondrichthyes ( sharks, skates, and rays) but includes the 29,000 species and more than 400 families of … Take these quizzes at Encyclopedia Britannica to test your knowledge on a … deep-sea fish, in general, any species of fishes (class Osteichthyes) that are … hagfish, also called slime eel, any of about 70 species of marine vertebrates placed … skate, (order Rajiformes), in zoology, any of numerous flat-bodied cartilaginous … ray, any of the cartilaginous fishes of the order Batoidei, related to sharks and … swordfish, (Xiphias gladius), prized food and game fish, probably the single … billfish, any of a group of long-jawed fishes (usually swordfish, marlin, and allies) … lamprey, any of about 43 species of primitive fishlike jawless vertebrates … theory-driven evaluation theory

Braincase simplification and the origin of lissamphibians

WitrynaThe mechanosensory lateral line system of fishes detects unidirectional and oscillatory water flows. It is found in all 30 000 + species of living fishes: the ‘Agnatha’ (the jawless fishes, the hagfishes and lampreys), the Chondrichthyes (sharks, skates, rays, and chimaeras), and the Osteichthyes (the bony fishes). Witryna19 sty 2024 · Class Osteichthyes (Bony fish) FISHES. General characteristics of all fishes (class Agnatha, class Chondrichthyes, class Osteichthyes) Gills “Water breathing” through gills which are … Witryna20 sty 2024 · b) Differentiate the above classes on the basis of two important characters. Answer: a) Chondrichthyes- Cartilaginous fish Osteichthyes-Bony fishes b) Chondrichthyes 1) Gill slits are separate and without operculum (gill cover). 2) The skin is tough, containing minute placoid scales b) Osteichthves 1) Skin is covered with … theory driving licence