ASU BIO 182 EXAM LATEST REVIEW
GRADED A+ 2024-2025
How do new species emerge? (correct answer) allopathic
what is allopathic? (correct answer) seperating to new locations
what is speciation? (correct answer) the evolutionary process by which new biological
species arise
How can isolated populations become separated species? (correct answer) when gene
flow is reduced between population diverge may happen due to mutation, natural
selection and genetic drift
allele frequencies and other independent population diverge and over time they become
distinct species
how do biologist identify species? (correct answer) biological identity species
What are species? (correct answer) evolutionary independent population or group of
population
what is biology identity species? (correct answer) biological species concept,
morphospecies concept and phylogenetic species concept
What is the biological species concept? (correct answer) considers pop to be
evolutionary independent of they reproductively isolated from each other (they don't
interbreed)
What are some mechanisms that stop gene flow between populations? (correct
answer) prezygotic and postzygotic
What is prezygotic isolation? (correct answer) when individuals from different
populations are prevented from mating
There are two individuals from different populations, they are prevented from mating,
what is this called? (correct answer) prezygotic isolation
What are some barriers that come with prezygotic isolation (correct answer) different
sleeping schedules , nocturnal or nonnoctural (night animals vs. day), habitat isolation,
different mating displays (a chicken and an elephant can't reproduce) morphological
isolation (anatomical issues)
, What is post-zygotic isolation? (correct answer) when individuals mate but the offspring
either do not survive, have low fitness or do not produce offspring.
What barriers come with post-zygotic isolation? (correct answer) hybrid inviability and
hybrid sterility
when an offspring dies shortly after birth or in the uterus what is this called? (correct
answer) hybrid inviability
An alligator with post zygotic isolation matured but cannot have offsprings, what is this
called? (correct answer) hybrid sterility
What is the geologic time scale? (correct answer) a record of the life forms and
geologic events in Earth's history
What were the four eras? (correct answer) Precambrian era, Paleozoic era, mesozoic
era and Cenozoic era
what is the precambrian era? (correct answer) spans from the formation of the earth
roughly 4.6 million years ago to the appearance of most animal groups about 542
million years ago.
what were the first life forms? (correct answer) unicellular bacteria
where did all cells live? (correct answer) marine habitats
since there was no oxygen in the atmosphere how did the first cells live? (correct
answer) energy from anaerobic fermentation
what were the major events in the precambrian era? (correct answer) formation of
earth, origin of life, origin of photosynthesis, establishment of o2 in the air
What was the Paleozoic era? (correct answer) covers the interval from 542 to 251 MAY
groups of fungi, plants and animals started to appear what was this evolutionary
process called? (correct answer) Cambrian radiation
in what era did the Cambrian radiation happy? (correct answer) Paleozoic era
what were some firsts in the Paleozoic era? (correct answer) multicellular life forms,
complex animals, first fossils of hard body parts from animals, appearance of land
animals and plants
which did the Paleozoic era end with? (correct answer) end permian extinction
GRADED A+ 2024-2025
How do new species emerge? (correct answer) allopathic
what is allopathic? (correct answer) seperating to new locations
what is speciation? (correct answer) the evolutionary process by which new biological
species arise
How can isolated populations become separated species? (correct answer) when gene
flow is reduced between population diverge may happen due to mutation, natural
selection and genetic drift
allele frequencies and other independent population diverge and over time they become
distinct species
how do biologist identify species? (correct answer) biological identity species
What are species? (correct answer) evolutionary independent population or group of
population
what is biology identity species? (correct answer) biological species concept,
morphospecies concept and phylogenetic species concept
What is the biological species concept? (correct answer) considers pop to be
evolutionary independent of they reproductively isolated from each other (they don't
interbreed)
What are some mechanisms that stop gene flow between populations? (correct
answer) prezygotic and postzygotic
What is prezygotic isolation? (correct answer) when individuals from different
populations are prevented from mating
There are two individuals from different populations, they are prevented from mating,
what is this called? (correct answer) prezygotic isolation
What are some barriers that come with prezygotic isolation (correct answer) different
sleeping schedules , nocturnal or nonnoctural (night animals vs. day), habitat isolation,
different mating displays (a chicken and an elephant can't reproduce) morphological
isolation (anatomical issues)
, What is post-zygotic isolation? (correct answer) when individuals mate but the offspring
either do not survive, have low fitness or do not produce offspring.
What barriers come with post-zygotic isolation? (correct answer) hybrid inviability and
hybrid sterility
when an offspring dies shortly after birth or in the uterus what is this called? (correct
answer) hybrid inviability
An alligator with post zygotic isolation matured but cannot have offsprings, what is this
called? (correct answer) hybrid sterility
What is the geologic time scale? (correct answer) a record of the life forms and
geologic events in Earth's history
What were the four eras? (correct answer) Precambrian era, Paleozoic era, mesozoic
era and Cenozoic era
what is the precambrian era? (correct answer) spans from the formation of the earth
roughly 4.6 million years ago to the appearance of most animal groups about 542
million years ago.
what were the first life forms? (correct answer) unicellular bacteria
where did all cells live? (correct answer) marine habitats
since there was no oxygen in the atmosphere how did the first cells live? (correct
answer) energy from anaerobic fermentation
what were the major events in the precambrian era? (correct answer) formation of
earth, origin of life, origin of photosynthesis, establishment of o2 in the air
What was the Paleozoic era? (correct answer) covers the interval from 542 to 251 MAY
groups of fungi, plants and animals started to appear what was this evolutionary
process called? (correct answer) Cambrian radiation
in what era did the Cambrian radiation happy? (correct answer) Paleozoic era
what were some firsts in the Paleozoic era? (correct answer) multicellular life forms,
complex animals, first fossils of hard body parts from animals, appearance of land
animals and plants
which did the Paleozoic era end with? (correct answer) end permian extinction
