Science Chapter 14+15 / Matching

when a bird inhales, most of the air passes into its __?

air sacs

keeps eggs warm until they hatch

amniotic egg

at some time have a notochord, gill slits, and dorsal hollow nerve chord?

Chordates???

soft, fluffy feathers that insulate a bird's skin

Down feathers

animals that only eat the flesh of other animals

carnivore

flexible tissue that is the skeleton in sharks

cartilage

what does metamorphosis mean

change of body form

animal whose body temperature changes with the environment?

ectotherm

list characteristics of amphibians

ectothermic, moist skin, no scales

vertebrae, skull, and internal skeleton

endosekleton

were thought to have been extinct

lobe finned fish

how do reptiles breathe?

lungs

produce milk that female mammals feed their young

mamemary glands

endothermic, vertebras that have hair and produce milk

mammals

mammals with pouches

marsupials

teeth that grind and crush

molars

mammals that lay eggs

monotremes

A bundle of nerve cords that lie above the notochord

nerve chord

Flexible, rod like structure along animal's back

notochord

animals that eat both other animals and plants

omnivores

saclike organs developed from tissues of the embryo

placenta

their young develop inside the uterus

placentals

list characteristics of birds

feathers, almost hollow bones, wings

fish move through the water using these

fins

Mammals hearts consists of __ chambers

four

time when the embryo develops in uterus

gestation period

Paired openings in the throat behind the mouth

gill slits

characteristics of fish

gills, fins and scales

List characteristics or marsupials

give birth to tiny young, young crawl into pouch, includes opossums and koalas

small stones and grit grind and crush food in the birds __?

gizzard

animals that only eat plants

herbivore

during cold winter months, amphibians

hibernate

front teeth that bite and cut

incisors

Turtles have no teeth and use their_ to feed

jaws

jawless fish

lamprey

monotremes are unusual mammals because they __?

lay eggs

cartilaginous

skate

_ feed on insects, worms, fish and rodents

snakes

air sac that allows fish to adjust their density

swim bladder

strong lightweight feathers that birds use to fly

contour feathers

birds are important because they __?

control pests and insects, pollinate flowers, and spread seeds

which us not a modern reptile

cotylosaurs

what is an endothermic vertebrate

dolphin

a bird rubbing oil over feathers

preening

List characteristics of mammals

produce milk, have hair, endotherms

yearly growth rings of fish can be counted on these

scales

most reptiles have a heart with

three chambers, except for crocodilians(they have four)

what is the purpose of hair on mammals

trap air and keep warm, protection from enemies, sense environment

what is an ectothermic vertebrate

trout

frogs hear with their

tympanic membranes

connects the embryo to the placenta

umbilical cord

some chordates are also

vertebrate