Pisces 0.0 / 5 ? BiologyDiversity of lifeUniversityAll boards Created by: ashannahv771Created on: 06-01-18 17:55 Class Myxini includes what type of fish? Hagfish 1 of 26 How many species are in Class Myxini? 70 2 of 26 What is the Class Myxini way of defense? Produce slime 3 of 26 What do Class Myxini feed on? annelids, molluscs, crustaceans and dead fish 4 of 26 Class Petromyzontida include what animals? Lampreys 5 of 26 How are lampreys parasitic? Can **** out bodily fluids 6 of 26 How to lampreys feed? Use their tongue, attach to a fish by buccal funnel 7 of 26 Lampreys are agnatha, what does this mean? Jawless 8 of 26 Class chondrichthyes include what? Cartilaginous fish 9 of 26 How many species are there in class chondrichthyes? 850 10 of 26 Rays and skates vary but are both in class chondrichthyes, what is their main difference? skates are egg layers but rays can bear offspring 11 of 26 Class actinoplerygii include what fish? Ray-finned fish 12 of 26 How many species in the class actinoplerygii? 25,000 13 of 26 What type of fertilisation do ray-finned fish have? external 14 of 26 There are 3 types of caudal fin, which is what sharks will have? Heterocercal 15 of 26 What fin will lungfish have? Diphycercal 16 of 26 Homocercal caudal fin can be found on which fish? Perch 17 of 26 They bony skeleton found in class actinoplerygii add weight to the body, what problem does this cause? Added weight means some sharks and other fish will sink if they stop 18 of 26 Some fish can over come this extra weight how? Gas bladder raises them 19 of 26 The class Actinoplerygii are gnastrostomatas, what does this mean? They have a jaw 20 of 26 Class sarcopterygii fish include what type of fish? lobe-finned fish 21 of 26 How many species are found in class Sarcopterygii? 8 22 of 26 How do lobe-finned fish ensure efficient respiration? Counter current flow 23 of 26 Salt regulation in freshwater fish within class Sacroptergii is maintained how? Salt leaves the fish according to the gradient, so kidneys and gills keep and bring salt back into the body 24 of 26 There are the ways this class can reproduce ? Mouthbreeding, Internal and external 25 of 26 External reproduction in this class is spawning, this is regulated by what? pheromones and sounds 26 of 26
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