ASU Bio 370 Exam 3- Content
Questions & answers rated A+
what was the result of the Permian Triassic extinction? - ANS ✔✔70% of terrestrial species go
extinct
95% of all marine species go extinct
opens up ecological niches galore!
pangea begins to break up during this period - ANS ✔✔early triassic
Climate: Early Triassic - ANS ✔✔more stratified, arid. Moist @ poles and arid at equator. No ice
caps
early triassic vegitation - ANS ✔✔gymnosperms: no angiosperms or grasses
the atmosphere in the early triassic was notable for its low levels of - ANS ✔✔oxygen
over the mesozoic era global temperatures were - ANS ✔✔decreasing
the middle triassic saw changes in these clades - ANS ✔✔decline of therapsids and
diversification of archosaurs
the late triassic saw changes in these clades - ANS ✔✔appearance of the first mammals, turtles,
crocodiles, flying and marine reptiles, and small, carnivorous dinosaurs
, in the mid-triassic archosaurs appeared mostly as - ANS ✔✔goat to rhinoceros sized herbivores,
low to the ground
mesozoic aquatic reptiles such a icthysaurs are a sister taxa to - ANS ✔✔lepidosaura: lizards,
snakes and tuataras
the triassic-jurassic extinction saw the extinction of - ANS ✔✔mostly crocodylian archosaurs
the jurassic period saw the continental formation of - ANS ✔✔eurasia and the opening of the
Atlantic
synapomorphies of archosaurs - ANS ✔✔socketed teeth, antorbital and mandibular fenestrae,
fourth trochanter (femur ridge for muscle attachment)
synapomorphies of ornithischia - ANS ✔✔leaf-shaped teeth, cheeks, jaw joints allowing for
chewing, predentery bone beak for leaf clipping
paleontologists use these techniques to determine the weight of an extinct animal from fossils -
ANS ✔✔Mass is proportional to leg area
scale models
3-D analysis
disadvantages of being large - ANS ✔✔support
food availability
cardio/respiratory function
thermoregulation
locomotion
Questions & answers rated A+
what was the result of the Permian Triassic extinction? - ANS ✔✔70% of terrestrial species go
extinct
95% of all marine species go extinct
opens up ecological niches galore!
pangea begins to break up during this period - ANS ✔✔early triassic
Climate: Early Triassic - ANS ✔✔more stratified, arid. Moist @ poles and arid at equator. No ice
caps
early triassic vegitation - ANS ✔✔gymnosperms: no angiosperms or grasses
the atmosphere in the early triassic was notable for its low levels of - ANS ✔✔oxygen
over the mesozoic era global temperatures were - ANS ✔✔decreasing
the middle triassic saw changes in these clades - ANS ✔✔decline of therapsids and
diversification of archosaurs
the late triassic saw changes in these clades - ANS ✔✔appearance of the first mammals, turtles,
crocodiles, flying and marine reptiles, and small, carnivorous dinosaurs
, in the mid-triassic archosaurs appeared mostly as - ANS ✔✔goat to rhinoceros sized herbivores,
low to the ground
mesozoic aquatic reptiles such a icthysaurs are a sister taxa to - ANS ✔✔lepidosaura: lizards,
snakes and tuataras
the triassic-jurassic extinction saw the extinction of - ANS ✔✔mostly crocodylian archosaurs
the jurassic period saw the continental formation of - ANS ✔✔eurasia and the opening of the
Atlantic
synapomorphies of archosaurs - ANS ✔✔socketed teeth, antorbital and mandibular fenestrae,
fourth trochanter (femur ridge for muscle attachment)
synapomorphies of ornithischia - ANS ✔✔leaf-shaped teeth, cheeks, jaw joints allowing for
chewing, predentery bone beak for leaf clipping
paleontologists use these techniques to determine the weight of an extinct animal from fossils -
ANS ✔✔Mass is proportional to leg area
scale models
3-D analysis
disadvantages of being large - ANS ✔✔support
food availability
cardio/respiratory function
thermoregulation
locomotion
