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what characteristics are in the class of agnatha and give examples
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what characteristics are in the class of chondricthyes and give ex.
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sharks and fish quiz
| Question | Answer |
|---|---|
| what characteristics are in the class of agnatha and give examples | jawless fish,lampreys, hangfish |
| what characteristics are in the class of chondricthyes and give ex. | jaws, paired fins, sharks skates and rays |
| characteristics of class of osteicthyes and give example | bony fish, most have swim bladder, rayed fins |
| what kind of skeleton do osteichythes have and what kind of skeleton do chondrichthes have | oste.. bony skeleton and chond.. cartilaginous skeleton |
| who has an operculm? what does the other group have? | osteichythes have operculum, chondrich.. have 5-7 naked gill slits |
| what are the pectoral and dorsal fins like in both classes | osteichythes have flexible ones and chondrichthes are inflexible |
| what does each class have for buoyancy | bony fish have swim bladder and chondrichthyes have liver |
| what kind of scales do bony fish have | ctenoid, cycloid, ganoid (finger nail like) |
| what kind of scales do cartilaginous fish have | placoid scales= minerature teeth |
| who has ampullae of lorenzini and what is it | cartilaginous fish and it pcks up electrical signals |
| what are the teeth like of both classes | bony fish have single row of teeth that arnt replaceable and carilage fish have rows of teeth that shed and replace |
| fertalization of classes | external for bony fish and internale for cartilage fish because males have claspers |
| development of bony fish and cartilage fish | bony is external and cartialge is 30% external in leathery eggs and 70% live born |
| what do you call the young for both class | bony fish is fry and cartilaginous fish is pup |
| who is larger | cartilage fish |
| mouth position in classes which has variation and which is in the same place | mouth below snout in most cartilogous fish and more vvariation with bony fish |
| cadal fin in bony fish are.. | homocercal: tails with dorsal and ventral parts nearly equal |
| what are types of fins in bony fish | rounded fork and lunate |
| what are caudal fins like in sharks | heterocercal- dorsal love longer than ventral- tail is slower moving |
| which class can has the characteristic that lower jaw can be hyper extended | cartiligous fish |
| anal fins in each class? | present in bony and lacking in cartilage |
| what is reproduction like for both classes | bony fish reproduce in larger number and shorter time to reach sexual maturity, cartiligous fish reproduce in smaller numbers and takes longer time to reach maturity |
| what is tonic immobility | if you lie shark on their back they are in sleep like state |
| how can you tell primitive sharks from advanced oness | sharks with more than 5 sets of gills are primitive |
| bottom dweller shark tails are for what instead of spead | stability |
| three ways ocean populations are plummiting | harvesting the sea with commerical fishing, predators become prey, global warming |
| how many sharks are killed per year and how many humans by sharks | 15 million and 6 |
| how long have chondrichthes been around | 100 million years unchanged |
| what do sharks eat give example | plankton basking adn whale shrks, bottom feeders carper sharks, ultimate predator, great white |
| how many species of shark | 350 |
| lack of swim bladder is a __ advantage | hunting |
| what kind of body do sharks have | fusiform (torpedo shaped_ with longer upper tail fin lobe |
| what are some identifying characteristics of bony fish | nerve cord, gills, notochord, post and alal tail, backbone |
| the class osteichthes includes the largest number of living species of all scientific classes of vertebrates, more than __ species | 2300 |
| osteichthes account fore about ___% of all fish species | 96 |
| more than how many species of bony fish | 23500 |
| primitive fishes date back to the __ period which is about ___ years ago | cambrian, 550 milliion |
| what kind of body do bony fish have | streamlined, rounded and tapering at both ends |
| why do bony fish have streamlined body | reduces drag and requires a minimum amount of energy to swim |
| bony fish deviate from the fusiform body shape in three directions: | compression, depression, and elongation |
| a laterally compressed body shape is common in bony fishes that live in | dense cover or within coral reefs |
| depressed body shape is common in | bottom dwelling bony fish |
| elongated body shapes are common in | open ocean fishes and eels |
| fins help | stabilie or propel the fish in the water |
| the caudal fin is responsible for.. | propulsion |
| most bony fish have a small pair of | gill openings |
| oxygenated air in bony fish enters through the fishes mouth and is forced over the __ and exitts behind the __ | gills, operculum |
| some surface feeding fish have mouths that angle __ like the __ | upwards, tarpon |
| butterfly fishes have what kind of mouth and why | thin snouts to get food in small cracks |
| bony fish have an inner ear for | equilibrium, detecting acceleration, and hearing |
| there is no __ for the ear | external opening |
| sound in water travels more than __ times faster than the speed of spound in air | 4 |
| lateral lines sense what | vibrations |
| the lateral line consits of a series of | series of fluid filled canals below skin of head and along sides of body |
| __ cells in the nasal sac detect tiny amounts of __ in solution | olfactory, chemicals |
| sense of smell is generally highly or hardly developed | highly |
| cleaner wrasse is an example of | symbiotic relationshi, cleaners that eat debris and parasites from skin of larger fish |
| remoras ecommonly attach themselves to | sharks and other fish using a modified dorsal fin and eat scraps left over from their hosts |
| nony fishes may have sybiotic relationship with ___. give example | nonfish species - clownfish and sea anenomes, which protect them |
| skeleton of bony fish provides | spinal cord, notochord, skull |
Created by:
lilcollins92