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25 Cards in this Set
- Front
- Back
fish class
Is reproduction internal or external? |
external
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list the five classes of vertebrates
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fish
amphibian reptile bird mammal |
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which classes lay eggs in water
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fish and amphibian
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which classes lay eggs on land
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bird
reptile |
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which classes are cold blooded
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reptile
fish amphibian |
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1. which class has scaly skin
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reptile
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what is the purpose of scaly skin on reptiles
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to prevent water loss
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in the bird class how are the groups determined
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by their feet and beak shapes
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ducks have what kind of feet
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webbed feet
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the ducks feet are webbed.
what is their purpose |
for swimming
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what shape beak does the duck have?
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flat bill
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what is the purpose of the flat bill(beak) of the duck?
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for scooping mud
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What kind of claws do the falcons and eagles have
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sharp, taloned (curved) claws
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the sharp taloned(curved) claws of the falcons and eagles are for what purpose
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catching prey
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what shape beaks do the falcons and eagles have
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sharp, curved beaks for tearing prey apart
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what glands in female mammals produce milk to nurse young
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mammary glands
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what are the three stages of metamorphisis of amphibians
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1. egg(jelly like protective layer)
2. tadpole 3. adult |
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the ampnibian skin must be moist.
why? |
so they can take in oxygen
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what do fish have that fills with gas. It allows fish rise and lower itself
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air bladder
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what fish must keep moving or they will drown
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shark
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sharks and rays skeletons are made out of___________
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cartilage
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jawless fish - lamprey and hagfish skeletons are made our of
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cartilage
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in fish fins are used for _________
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swimming
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in fish gills are used for____________
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absorption of oxygen from water
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in fish the rings on scales tell what?
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age of the fish
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