EEOB 2250 Exam 1 questions well
answered 100% correct
What three eons make up the geological time scale? - correct answer ✔✔Archean
Proterozoic
Phanerozoic
What is the time scale of the Paleozoic era? - correct answer ✔✔Cambrian period
Ordovician period
Silurian period
Devonian period
Carboniferous period
Permian period
What is the Time Scale of the Mesozoic Era? - correct answer ✔✔Triassic
Jurassic
Cretaceous
What time period had the appearance of many types of relatively large, mobile animals with hard
skeletal tissues? - correct answer ✔✔Cambrian
What time period had widespread shallow seas; diverse marine life and the first jawless fishes? - correct
answer ✔✔Ordovician
What time period had radiation of jawless fishes, first jawed fishes and first terrestrial plants and
arthropods? - correct answer ✔✔Silurian
What time period had the first forests, radiation of terrestrial arthropods, radiation of jawed fishes, and
the first tetrapods? - correct answer ✔✔Devonian
,What time period had radiation of amphibians, radiation of insects, and coalescence of continents? -
correct answer ✔✔Carboniferous
What time period was Pangea formed by the end of, had, widespread dry, interior areas, radiation of
amniotes, mammal lineage was dominant, and massive extinction at the end? - correct answer
✔✔Permian
What time period had a widespread dry interior areas, gymnosperms were dominant, archosaurs (and
dinosaurs) replace mammal lineage as dominant group by the end, had the first pterosaurs and marine
reptiles, and had first true mammals at the end? - correct answer ✔✔Triassic
What time period had a radiation of dinosaurs, Pangea began to breakup, and had the first birds? -
correct answer ✔✔Jurassic
What time period had further separation of continents, extensive epicontinental seas, a radiation of
angiosperms (flowering plants), a radiation of birds, and a major extinction at the end? - correct answer
✔✔Cretaceous
What time period had a radiation of mammals? - correct answer ✔✔Cenozoic Era
When was the first fossil dinosaur species described? - correct answer ✔✔1820s
When was Dinosauria officially recognized? - correct answer ✔✔1842
Where were many spectacular dinosaur fossils were discovered in the late 1800s? - correct answer
✔✔western North America
When new material is added to the crust, the sides of plates may form _________ _______. - correct
answer ✔✔spreading zones
When one plate dives below another plate, _________ _____ are formed. - correct answer
✔✔subduction zones
, During what period were there several separate continents and one large southern continent
(Gondwana)? - correct answer ✔✔Cambrian (~500my)
During what period did continents begin to coalesce to form the supercontinent Pangea? - correct
answer ✔✔Carboniferous (~300my)
During what period did Pangea begin to split? - correct answer ✔✔Jurassic (~160my)
By the end of what period did extensive splitting of continents occur? - correct answer ✔✔Cretaceous
(~65my)
What is it called when calcium phosphate precipitates in tissue - actual tissue usually lost, leaving
phosphate copy-soft tissue? - correct answer ✔✔phosphatization
What is it called when minerals from groundwater often precipitate in empty organic spaces? - correct
answer ✔✔perimineralization
How can fossils be dated? - correct answer ✔✔by position in strata
What is the study of the circumstances of burial and fossil preservation of organismal remains? - correct
answer ✔✔taphonomy
What is a widely accepted method of determining evolutionary relationships between species where
organisms are grouped into monophyletic groups (i.e., all members share a common ancestor)? - correct
answer ✔✔cladistics (clades)
What are the two resulting lineages that occur at a node (splitting point on a phylogenetic tree)? -
correct answer ✔✔sister taxa
What is the minimal amount of time two descendant lineages have evolved independently from a
common ancestor? - correct answer ✔✔minimum divergence time (MDT)
answered 100% correct
What three eons make up the geological time scale? - correct answer ✔✔Archean
Proterozoic
Phanerozoic
What is the time scale of the Paleozoic era? - correct answer ✔✔Cambrian period
Ordovician period
Silurian period
Devonian period
Carboniferous period
Permian period
What is the Time Scale of the Mesozoic Era? - correct answer ✔✔Triassic
Jurassic
Cretaceous
What time period had the appearance of many types of relatively large, mobile animals with hard
skeletal tissues? - correct answer ✔✔Cambrian
What time period had widespread shallow seas; diverse marine life and the first jawless fishes? - correct
answer ✔✔Ordovician
What time period had radiation of jawless fishes, first jawed fishes and first terrestrial plants and
arthropods? - correct answer ✔✔Silurian
What time period had the first forests, radiation of terrestrial arthropods, radiation of jawed fishes, and
the first tetrapods? - correct answer ✔✔Devonian
,What time period had radiation of amphibians, radiation of insects, and coalescence of continents? -
correct answer ✔✔Carboniferous
What time period was Pangea formed by the end of, had, widespread dry, interior areas, radiation of
amniotes, mammal lineage was dominant, and massive extinction at the end? - correct answer
✔✔Permian
What time period had a widespread dry interior areas, gymnosperms were dominant, archosaurs (and
dinosaurs) replace mammal lineage as dominant group by the end, had the first pterosaurs and marine
reptiles, and had first true mammals at the end? - correct answer ✔✔Triassic
What time period had a radiation of dinosaurs, Pangea began to breakup, and had the first birds? -
correct answer ✔✔Jurassic
What time period had further separation of continents, extensive epicontinental seas, a radiation of
angiosperms (flowering plants), a radiation of birds, and a major extinction at the end? - correct answer
✔✔Cretaceous
What time period had a radiation of mammals? - correct answer ✔✔Cenozoic Era
When was the first fossil dinosaur species described? - correct answer ✔✔1820s
When was Dinosauria officially recognized? - correct answer ✔✔1842
Where were many spectacular dinosaur fossils were discovered in the late 1800s? - correct answer
✔✔western North America
When new material is added to the crust, the sides of plates may form _________ _______. - correct
answer ✔✔spreading zones
When one plate dives below another plate, _________ _____ are formed. - correct answer
✔✔subduction zones
, During what period were there several separate continents and one large southern continent
(Gondwana)? - correct answer ✔✔Cambrian (~500my)
During what period did continents begin to coalesce to form the supercontinent Pangea? - correct
answer ✔✔Carboniferous (~300my)
During what period did Pangea begin to split? - correct answer ✔✔Jurassic (~160my)
By the end of what period did extensive splitting of continents occur? - correct answer ✔✔Cretaceous
(~65my)
What is it called when calcium phosphate precipitates in tissue - actual tissue usually lost, leaving
phosphate copy-soft tissue? - correct answer ✔✔phosphatization
What is it called when minerals from groundwater often precipitate in empty organic spaces? - correct
answer ✔✔perimineralization
How can fossils be dated? - correct answer ✔✔by position in strata
What is the study of the circumstances of burial and fossil preservation of organismal remains? - correct
answer ✔✔taphonomy
What is a widely accepted method of determining evolutionary relationships between species where
organisms are grouped into monophyletic groups (i.e., all members share a common ancestor)? - correct
answer ✔✔cladistics (clades)
What are the two resulting lineages that occur at a node (splitting point on a phylogenetic tree)? -
correct answer ✔✔sister taxa
What is the minimal amount of time two descendant lineages have evolved independently from a
common ancestor? - correct answer ✔✔minimum divergence time (MDT)
