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32 terms

Reptiles

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dinosaur
group of extinct reptiles that dominated life on land roughly 150 million years
asteroid impact hypothesis
suggests a huge asteroid hit Earth & formed a crater on the Yucatan
amniotic egg
encase the embryo in a secure self-contained aquatic environment
amnion
thin membrane enclosing the fluid in which the embryo floats
yolk sac
encloses the yolk, a fat-rich food supply for the developing embryo
allantois
stores the nitrogenous wastes produced by the embryo
alumben
protein & water needed by the embryo are contained in this
chorion
surrounds all the other membranes & help protect the developing embryo
keratin
scales/shell made from the same protein that forms your nails & hair
septum
in reptiles the heart has 2 atria & 1 ventricle partially divided by a wall of tissue
alveolus
lining of the lungs may be folded into numerous small sacs
jacobson's organ
specialized sense organ located in the roof of the mouth
ectotherm
warms its body by absorbing heat from its surroundings
endotherm
mammals & birds, rapid metabolism which generates heat needed to warm the body
oviparity
female's reproductive tract that encloses each egg in a tough protective shell
ovoviviparity
retain eggs in body for a long pd of time
viviparity
shell doesn't form around egg, the young are retained within the female's body til they're mature enough to be born
placenta
nutrients & oxygen are transferred from mom to embryo
carapace
top or dorsal part of the turtle shell
plastron
bottom or ventral part of the turtle shell
autotomy
the ability to detatch the tail
constrictor
snakes wrap their body around their prey
elapid
inject poison thru 2 small fixed fangs in the front of the mouth
viper
inject venom thru large, mobile fangs in the front of the mouth
299 MYA
mass extinction
Chelonia
turtles, tortoises
Crocodillia
alligators, crocodiles
Squamata
lizards, snakes
Rhynchocephalia
tuataras
pulmonary loop
carries deoxygenated blood from the heart to the lungs & returns oxygenated blood to the heart
systematic loop
transports oxygenated blood to the tissues & returns deoxygenated blood to the heart
thermoregulation
control of body temperature