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50 Cards in this Set

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  • Back
Which of the following are Not trends of vertebrate evolution
increases in size, speed, strength, and physical progress

So they did not have these things
The early amniotes
develop a land egg
Pg 434 photo body plan of a lancelet a small filter-feeder: which structure is a rod of stiffened support tissue?
b. the notochord is a rod of stiffened support tissue
Four of the five vertebrates listed below are members of the same group select the exception
tuataras: Tautaras have two species that live off the New Zealand coast all that remains from lineage that thrieved in Triassic. Means " peaks on back. have third eye develops under the skin of the fore head. Function unclear.
Name the ancestors of modern reptiles.
ancestors of modern reptiles: crocodilians, turtles, tautaras, snakes, and lizards.
Which group of reptiles is the most diverse?
Lizards with 4,710 species. Smallest size of a dime and largest (Komodo Dragon) can reach 3 meters and salavia contains deadly pathogenic bacteria.
Rember some question with answer being about turtles
turtle shells are enlarged in marine forms
The image on page 444 body plan of crocodile: which structure is the cloaca?
D. where the anus is
How many chambers does the alligator/croc have?
4 chamber heart so blood flows through 2 entirly seperate curcuits. Keeping oxygen poor blo9od from returning to the body and mixing with oxygen rich blood from the lungs.
In vertebrate evolution, the appearance of the vertebral column led most directly to development of:
JAWS
Both excisting mammals and extinct mammal-like groups are
Synapsids
The distinct mammalian traits of the mouth:4 teeth are like this sharp at in the frount
canines
Two types of mammals appeared when the dinosaurs were becoming dominant: both evolved during Jurassic
Monotremes(egg-laying) Mo no tree eggs _way to remember
Marsupials(pouched mammals) Mars is small enough for a pouch_ way to remember
Placental evolved later in Cretaceous period_ because placental when they come out fluid tries and is crusty like Cretaceous period(gross i know) but rmember
What is a placenta
an organ that allows materials to pass between the mother and an embryo developing inside her body. Placental embryos grow faster than other animals.
Examples of morphological convergence
The ant hunting snout of Austrailia's aunteater that is egg-laying, Africa's aardvark which is pouched, and South America's giant anteater that is placental- all mammals that convergent evolution from different habitats on different continents
When did mammals undergo the great adaptive radiation
The end of the Cretaceous also when dinosaurs disappeared. And then In Tertiary ADAPTIVE RADIATION of mammals really occurred
Remember the picture of the Tuataras will ask which is Not true of the animal depicted above
it is all of these are true
Which of the following is a diagnostic feature that forms the basis for classification of the sea squirts?
a notocord located in the tail of the larva of sea squirts.
Which is the only group of lobe-finned fishes?
Coelacanths (Latimeria) are the only modern group and two populations we know about may be seperate species. Thier ventral fins are fleshy extensions of the body wall and have internal skeletal elements.
Which fishes are most closely related to amphibians and name the only species alive
Lobe finned fishes and the Latimeria or Coelacanths.
Cartilaginous fishes inclued 850 species of mostly marine_____and ______.
sharks and rays that all have skeleton cartilage and 5 to 7 gill slits. Teeth are modified scales hardened with bone and dentin. they grow in rows and are continuously shed and replaced.
Three bony fish subgroups
Ray-finned fishes, lung fishes are bony fishes that have gills and lungsacs-modified outpouchings of the gut wall. They fill sacs by surfacing and gulping air, then oxygen diffuses the sacs into the blood.
Name 4 Ray-finned bony fishes:
perch the have cloaca, sea horse, coral grouper, and long-nose GAR which is a fast preditor.
latches on another fish and feeds on its tissues and problem in great lakes that costs millions each year. they are JAWLESS
LAMPREYs are a lineage of jawless fishes that undergo metamorphosis. As adults, about are ecologically important parasites of other fishes.
Lancelets posses which of the following as adults?
dorsal nerve cord extends to head, notocord, pharynx with gill slits, tail extents behind anus, eyespot, tentacle-like structures around the mouth, epidermis, segmanted muscles, midgut, AORTA, gonad, hindgut, pore of artial cavity, anus
Subphylum of the lancelets
Cephalochordate
Lancetes have no brain, braincase or paired sensory organ
Movement of cillia causes water to flow in through the mouth, into the pharaynx, then out the body through gills slits
Invertebrate cordates name all:
Lancelets and Tunicates
Craniates
Lampreys(jawless) and Vertebrates:ALL
Name Vertbrates
Lampreys(jawless fishes) Jawed fishes:Cartilaginous fishes and bony fishes, Amphibians, Reptiles, Birds, Mammals.
Name the 4 defining traits of Chordate embryos: Notocord:rod of stiff but flexible tissue, extends length of body and supports it, dorsal hollow nerve cord parrallel to notocord.
3)gills slits across wall of Pharynx, 4) musclular tail extends beyond the anus
Chordates are bilateral and coelomate they show cephalization (structures centered at head)and segmentation(paired sturctures like muscles
Invertebrate Chordates the Lancelts and tunicates and the Carnicates: cranium but no backbone and the HANGFISH are the only modern craniates. Hangfish realeas slimy mucous secretions.
Hangfish
The only Craniates they are called slime eels because when threatened they realease a slimy mucus a gallon worth. Most "eelskin" is hangfish skin.
Tunicates are the only of the chordates that the larva form is different from the adult explain:
subphylum Urochordate Larva have typical chordate features a nervecorde notocord gut and pharnxy with gill slits. BUT Adults ONLY retain Pharnxy and gill slits after metamorphisis.
How scientists define cordates
based on traits seen in thier embryos. Only in invert cordates, lancelets do the same traits of larva or embro persist in adult.
The enourmous astroid that coaused dino extinction
K-T asteroid impact hypothesis.
The most important feature of recent evolution of humans is
Cultural evolution
Which structure has cillia that creates water currents and mucous sheets that capture nutrientsa suspended in water in filter feeding cordates
GILL SLits
Which feature is not found amound amoung all vertebrates
four legs (tetrapod)
Homo erectus developed a broader diet because most homids because of all of the following EXCEPT?
Development of bow and arrow
Which of the following is not true about hangfish
They are known only from the fossil record
Finding very large crater in the Gulf of Mexico provided the support for the
K-T asteroid impact
Which of the following features is Not an important evolutionary advancment in the evolution of arboreal primates?
enlongated snout with a well-developed sence of smell.
The primate fossil named Lucy was
an australopith
Reptiles resemble _____ in being able to ____
Birds:breath by use of lungs
How did we know Homids did not have splayed out big toes?
Mary Leaky found fossilized foot prints from soft volcanic ash.
The only human feature still present in the human adult is the
dorsal nerve cord
An organism with feathers must also have
a dorsal nerve cord
The earliest hominids used tools to
facsilitate the processing of food
What cause vertbrates to want to go on land
absence of predators and competors