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zoology fish test
| Question | Answer |
|---|---|
| what was the first group of backboned animals (chordates) to appear on Earth? | fishes |
| are fish ecto or endothermic? meaning? | ectothermic: they can't create internal body heat so their body matches the temperature of the water they are swimming in |
| if a fish is long and slender it likely hides in _______ | rocks |
| if a fish is flat, it is likely a _________ | bottom dweller |
| if a fish has an elongated body, it is likely a _____ swimmer | fast |
| if a fish has bony plates, it is likely a ______ swimmer | slow |
| what adaptation help fish living in coral reefs be agile? | deep, flat bodies |
| cartilaginous fish have ______ unlike bony fish | cartilage |
| what evolutionary adaptation evolved from the 3rd and 4th gill in the early fish? | jaws |
| what is the largest species of shark? | whale shark |
| how do most sharks breathe? | by continuously swimming |
| why are sharks such efficient predators? (what is their body like) | stremlined bodyshape |
| why are shark teeth important to paleontologists? | cartilage skeletons are not preserved well, fossil evidence can only come from teeth |
| what makes whale sharks different from other sharks? | they filter-feed plankton |
| what is oviparous shark reproduction? | lays yolky eggs |
| what is ovoviparous shark reproduction? | internal, young yolks hatch internally then release |
| which group of fish have the large number of vertebrate species? | ray finned fish |
| what structure do bony fish have that sharks lack ? | swim bladder |
| what is the function of the lateral line system in fish? | detecting vibrations |
| how do swim bladders help bony fish survive in their habitats? | they regulate buoyancy |
| how many chambers does a fish's heart have? | 2 |
| what adaptation allows fish to survive in subzero antarctic waters? | antifreeze proteins in blood |
| what are homoceral fish? | equal top and bottom |
| what are diphycercal fish? | flesh goes down to the tip |
| what are baby fish called? | fry |
| how do viviparous fish reproduce? | develop in mother's body in placenta like structure |
| how does oviporous fish reproduce? | lay eggs |
| what types of scales do bony fish have? | cycloid or ctenoid |
| what feature is unique to rays compared to other fish? | ventral gills |
| what is spawning in bony fish? | fertilizaton of eggs |
| what species of fish is known to change sex from male to female? | clownfish |
| what is the heaviest known fish? | ocean sunfish |
| which group of fish shares the closest ancestors with amphibians? | lobe finned fish |
| lungfish and coelanths are examples of lobe-finned fish | |
| what are some characteristics and examples of agnathas? | jawless (lampreyus and hagfish) |
| what are examples and characteristics of chondrichthyes? | cartilage (sharks + rays) |
| characterstics and examples of Osteichthyes? | boney fish |
Created by:
sazzyusername