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25 Cards in this Set

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fish class

Is reproduction internal or
external?
external
list the five classes of vertebrates
fish
amphibian
reptile
bird
mammal
which classes lay eggs in water
fish and amphibian
which classes lay eggs on land
bird
reptile
which classes are cold blooded
reptile
fish
amphibian
1. which class has scaly skin
reptile
what is the purpose of scaly skin on reptiles
to prevent water loss
in the bird class how are the groups determined
by their feet and beak shapes
ducks have what kind of feet
webbed feet
the ducks feet are webbed.

what is their purpose
for swimming
what shape beak does the duck have?
flat bill
what is the purpose of the flat bill(beak) of the duck?
for scooping mud
What kind of claws do the falcons and eagles have
sharp, taloned (curved) claws
the sharp taloned(curved) claws of the falcons and eagles are for what purpose
catching prey
what shape beaks do the falcons and eagles have
sharp, curved beaks for tearing prey apart
what glands in female mammals produce milk to nurse young
mammary glands
what are the three stages of metamorphisis of amphibians
1. egg(jelly like protective layer)
2. tadpole
3. adult
the ampnibian skin must be moist.

why?
so they can take in oxygen
what do fish have that fills with gas. It allows fish rise and lower itself
air bladder
what fish must keep moving or they will drown
shark
sharks and rays skeletons are made out of___________
cartilage
jawless fish - lamprey and hagfish skeletons are made our of
cartilage
in fish fins are used for _________
swimming
in fish gills are used for____________
absorption of oxygen from water
in fish the rings on scales tell what?
age of the fish