Body Systems Flashcards
This order of crustacea has barnacles that are sessile as adults but free swimming larvae and are hermaphroditic and some have stalks
cirripedia
class of arthropods that includes insects which is the largest group of animals and there are about one billion billion insects alive at any one time
hexapoda
three body regions of insects
head, thorax, abdomen
these permeate all tissues in insects to breathe
tracheae
This class of arthropods have no tagmata and include centipedes and millipedes and have bodies with a head followed by numerous segments
myriapoda
this phylum is an ancient group of marine animals with about 6000 species and are deuterostomes and have an endoskeleton
echinodermata
the blank of echinoderms are bilaterally symmetrical and blank symmetrical as adults which means blank lines
larvae, pentaradial, five
echinoderms have an endoskeleton made of calcite plates called blank
endoskeletons, ossicles
echinoderms have blank so they can change shape and drop body parts
mutable collagenous tissue
papulae are the same as
tube feet
there are more than blank extinct classes of echinoderms
20
there are five classes of echinoderms and they are
asteroidea, crinoidea, echinoidea, holothuroidea, ophiuroidea
this class of echinoderm includes seas stars and sea daisies
asteroidea
this class of echinoderms includes sea lillies and feather stars
crinoidea
this class of echinoderms includes sea urchins and sand dollars
echinoidea
this class of echinoderms includes sea cucumbers
holothuroidea
this class of echinoderms includes brittle stars
ophiuroidea
The chordates nearest relative is the blank
echinoderms
Five features characterize chordates and they are
nerve cord, notochord, pharyngeal slits, postanal tail, endostyle
turned into the spinal cord
nerve cord
turgid cord of cells wrapped with connective tissue that turned into the spinal column
notochord
gill arches that form bones in ears
pharyngeal slits
manages iodine metabolism and turns into the thyroid gland
endostyle
three subphyla of the chordata phylum
cephalochordata, urochordata, vertebrata
subphylum of chordata that have all chordate characteristics throughout lifetime but no anterior sense organs or brain
cephalochordata
oldest chordate which was a cephalochordate
pikaia
subphylum of chordata that includes tunicates and are marine animals with tadpolelike larvae and adults typically lose the tail, nerve chord, and notochord
urochordata
urochordata often secrete a blank which is a cellulose sac that surrounds the animal
tunic
subphylum of chordates that includes vertebrates and an endoskeleton made of cartilage or bone
vertebrata
chordates with a spinal column
vertebrates
most diverse vertebrate group including half of all vertebrates
fishes
five characteristics of fishes
vertebral column, jaws and paired appendages, internal gills, single loop blood circulation, nutritional deficiencies
the first fishes had blank but no blank
mouths, jaws
first fishes that had bony plates and are now extinct
ostracoderms
first fishes that have no jaws that still exist today
hagfish and lampreys
the development of jaws occurred in the late blank period
silurian
fishes were the first vertebrates to develop blank
teeth
these two things make up shark scales and all teeth
dentin and enamel
fishes have a blank system that is a series of sensory organs under the skin that detects changes in pressure waves
lateral line
first jawed fish came about during the blank perdio
devonian
first jawed fish that was spiny
acanthodii
first jawed fish that were armored
placodermi
in this period, sharks became the dominant sea predators
carboniferous
chondro means
cartilage
ichthyes means
fish
the most species rich group of all vertebrates
bony fishes
a gas filled sac that allows bony fishes to regulate their buoyant density
swim bladder
a hard plate that covers the gills
operculum
the felxing of this permits water pumping over the gills
gill cover
group of bony fishes that are ray finned and there are no muscles in the fins
actinopterygii
group of bony fishes that are lobe finned and have paired fins that consist of a long fleshy muscular lobe
sarcopterygii
sarco means
flesh
damp skinned vertebrates and were the first vertebrates to walk on land
amphibians
Three adaptations of amphibians
legs, lungs, system to prevent desiccation
amphibians reproduce where?
H2O
this word means “drying out”
desiccation
amphibians evolved from blank
lobe finned fish
Three bones that are found in bony fishes and amphibians today
humerus, femur, radius
modern amphibians come from the blank period
tertiary
Three orders of today’s amphibians
anura, caudata, and apoda
order of amphibians that means without tail
anura
frogs and toads are part of this order of amphibians…
anura
type of fertilization in anura
external
order of amphibians that includes salamanders and larvae are similar to adults
caudata
type of fertilization in caudata
internal
order of amphibians that includes caecilians and lay their eggs underground and are legless burrowers
apoda
animals that evolved from amphibians and all have one major thing in common because the amniotic egg has blank membranes
amniotes, four
This includes mammals, birds, and reptiles
amniotes
amniotes have a blank egg with an amnion and yolk sac
water tight
these animals dominated earth for 250 million years and there are 7000 species today on earth
reptiles
type of breathing that increases lung capacity by chest moving
thoracic breathing
type of fertilization in reptiles
internal
reptiles have blank circulation than amphibians
better
class of reptiles that are shelled, have a solid skull, have beaks but no teeth. includes turtles
testudina
in turtles, what structures creates the shell
the ribs
order of Lepidosauria that has two species of tuataras which are large lizard like animals found in New Zealand
Rhynchocephalia
Order of Lepidosauria that are reptiles that have lizards and snakes and has a light skull with many openings and joints and have a forked penis called a blank
squamata, hemopenes
Class of reptiles that are the ruling reptiles and are the first bipedal vertebrates
archosauria
means walks on two legs
bipedal