Shared Flashcard Set

Details

Vertebrates
Use for unit test on 4.9.09
66
Science
7th Grade
04/06/2009

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Cards

Term
how are birds similar to reptiles?
Definition

amnotic eggs (harder shell)

thick,dry scales (on legs and feet)

Term
how are birds unlike reptiles?
Definition

covered w/ feathers

beaks instead of jaws and teeth

Term
down feathers
Definition
fluffy for warmth
Term
contour feathers
Definition
stiff and streamlined for flight
Term
preening
Definition
take care of feathers
Term
birds body temp.
Definition
40 degrees more than us
Term
what do birds eat
Definition

ALOT

insects,nuts,seeds,meat

Term
how do birds eats
Definition

w/ crop and gizzard

(like a worm)

Term
what helps a bird fly?
Definition

-powerful wings

-hollow,light bones

-powerful flight muscles

-large eyes and excellent eyesight

-quik heart beat (1000timesperminute)

-airsacs on lungs

Term
what do wings provide?
Definition
Lift
Term
what does curve do?
Definition
makes air flow farther, and therefore, faster on top of wing
Term
what does low pressure on top of a wing do?
Definition
pushes the wing up
Term
curve and low pressure is called the ...
Definition
bernouill effect
Term
migration
Definition
moving from place to place
Term
reporduction of birds
Definition
internal
Term
bird nuturing
Definition

brooding- sit on eggs to keep warm

some born atrical (weak,naked,helpless)

some precocial like chicks

Term
how many bird species are there?
Definition
9000
Term
how many bird orders are there?
Definition
29
Term
how many nonscientific categories of birds are there?
Definition
4
Term
vertebrate
Definition
an animal w/ a skul and a backbone
Term
endotherm
Definition
an animal that mantains a constant body temp despite temp changes in its enviroment
Term
ectotherm
Definition
an animal whose body temp fluctuates w. the enviromentss temp
Term
fins
Definition
fanlike strucutures that help fish move trun stop and balance
Term
scales
Definition
bony structures that cover the skin of bony fishes
Term
lateral line system
Definition
a row or rows of tiny sense organs along the sides of fishes bodies
Term
gills
Definition
organs that remove oxygen from the water and carbon dioxide from the blood
Term
denticles
Definition
small sharp toothlike structures on the skin of cartilaginous fishes
Term
swim bladder
Definition
a balloon like organ that is filled w/ oxygen and other gases
Term
lung
Definition
a saclike organ that takes oxygen from the air and delivers it to blood
Term
tadpole
Definition
the aquatic larvae of an amphian
Term
mammary glands(birds)
Definition
glands that secrete a nutritious fluid called milk
Term
diaphragm
Definition
the sheet of muscle underneath the lungs of a mammals that helps draw air into the lungs
Term
monotreme
Definition
a mammal that lays eggs
Term
marsupial
Definition
a mammal that gives birth to partially developed young
Term
placental mammal
Definition
a mammal that norishes its unborn of spring w/ a placenta inside the urterus and gives birth to well developed young
Term
gestation period
Definition
the time during which an embryo develops within the mother
Term
fish characteristics
Definition
fins,gills,scales,greatsenses
Term
lamprey and hogfish
Definition
jawless fish
Term
smooth, slimy skin
Definition
jawless fish
Term
round mouth
Definition
jawless
Term
skeleton made of cartilage
Definition
jawless and cartilaginous
Term
notochord
Definition
jawless
Term
skin covered w/ denticles
Definition
cartilaginous
Term
shark
Definition
cartilaginous
Term
goldfish
Definition
bony
Term
skeleton w/ bones
Definition
bony
Term
convered in scales
Definition
bony
Term
float using swim bladder
Definition
bony
Term
reptile characteristics
Definition
thick skin, internal fertilazation, amnotic egg
Term
thick skin does what
Definition
keeps water in
Term
reptile types
Definition
turtles and tortoises, crocs and ali, lizards, snakes, tuantaras
Term
amphibian characteristics
Definition
thin skin, double life
Term
amphibian means
Definition
double life
-metamorphosis
-water to land
-tadpole to frog
Term
amphibian thin skin does what?
Definition
absorbs water. breathing
Term
amphibian types
Definition
caecillians, salamanders, frogs and toads
Term
jawless fertilization
Definition
external
Term
cartilaginous fertilization
Definition
internal / external
Term
bony fertilization
Definition
external / internal
Term
amphibian fertilization
Definition
external
Term
reptile fertilization
Definition
external
Term
who was first to have a 3chambered heart
Definition
amphibians
Term
amphbians use their______tobreath
Definition
lungs,gills,skin
Term
reptiles use their ____ to breathe
Definition
lungs
Term
Mammal characteristics
Definition
fury, milk feeding through mammary glands
Term
Mammal types
Definition
montreme, placental, marsupials
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