Life Sci 15 Midterm Phelan Exam Questions with 100%
Correct Answers Verified Updated 2024
What ois oscientific othinking ofor oand ohow odoes oit owork? o- oAnswer o- o o oMake oobservations,
oformulate oa ohypothesis, omake oa oprediction, oconduct oan oexperiment, odraw oa oconclusion.
How odoes oa ohypothesis odiffer ofrom oa otheory oor oprediction o- oAnswer o- o o o- oa oprediction oonly
ooffers oa oguess oof owhat owill ohappen oin othe ofuture
- oa otheory ois oa owidely oaccepted oidea othat ohas oserious oevidence obehind oit, obacking oit oup; oex:
otheory oof oevolution
- oa ohypothesis ois oa oproposed oexplanation ofor oobserved ophenomena
- oa ohypothesis omust ogenerate otestable opredictions
- otheories oare ogenerally obroader othan ohypotheses. oA oprediction ois ogoing oto obe osomething othat
ocomes ofrom oyour ohypothesis, oa ohypothesis ois oproposed oexplanation, otested oand osupported
ohypothesis ois oa otheory
What odoes oit omean oto ocontrol oan oexperiment? o- oAnswer o- o o o- omake osure othere oare ono
ounderlying odifferenced obetween othe oexperimental ogroups
- ochange oonly oONE ovariable oat oa otime
- otreat oall osubject othe osame oexcept ofor othe oone odeviation owhich owould onot oget othe otreatment
oand obe othe ocontrol ogroup o
Ex. oThe osleep ostudy oto osee owho ogot osick oeasier, othere omight obe osomething othere obut oif oit ois
onot ocontrolled othere omay obe oother othings othere
Compare oand ocontrast osuperstitions, oanecdotal oobservations, oand opseudoscience? o- oAnswer o- o o
o- opseudoscience: owhen oindividuals omake oscientific osounding oclaims othat oare oNOT osupported oby
, otrustworthy, omethodical, oscientific ostudiesex: o"9 oout oof o10 odoctor orecommend obrand oX"How
omany odoctors owere othere? oHow owere othey oselected? oWhat owas othe oalternative oto obrand oX?
- oanecdotal oobservations: obased oon o1 oor o2 o(or oa ofew) oobservations, opeople oconclude othere ois
oor ois onot oa olink obetween o2 othings
- osuperstition: obelief oin othe osupernatural oto oexplain ophenomena oin othe onatural oworld; ousually
oarises ofrom oa omisunderstanding oof oscience
Will omore oand omore oobservations osupporting oa ohypothesis oprove oit oto obe otrue? oIf onot owhat
ohappens? o- oAnswer o- o o oMore oand omore oobservations owill onot oprove oa ohypothesis otrue, oit owill
oonly oincrease osupport ofor othe ohypothesis. oIt ocan obe oproven ofalse owith oany ocontradicting
oevidence.
What ois oevolution ohow ocan oit ooccur? oGive oan oexample. o- oAnswer o- o o oA ochange oin oallele
ofrequencies owithin oa opopulation.
Occurs othrough omutation, omigration, ogenetic odrift, oand onatural oselection. o
Ex: obirthweight oin obabies, oturkey obreast omuscle osize odue oto othe oartificial oselection othey ocannot
omate, ofur ocolor othat oblends ointo othe obackground,.
What ois onatural oselection, ohow odoes oit owork? oGive oan oexample. o- oAnswer o- o o o- onatural
oselection ois othe onon-random oelimination oof oalleles
- o3 oconditions othat oNEED oto obe osatisfied: ovariation, oheritability, odifferential oreproductive osuccess
Ex: ogiraffe onecks
What oideas oand oobservations oinfluenced oDarwin? o- oAnswer o- o o oFinch ovariation:
- oeach oisland ohad ounique ospecies
- oisland ospecies oresembled omainland ospecies
- omaybe othey oused oto obe othe osame ospecies?
Similarities obetween ofossils oof oextinct ospecies oand othe oliving ospecies oin oan oarea:
Correct Answers Verified Updated 2024
What ois oscientific othinking ofor oand ohow odoes oit owork? o- oAnswer o- o o oMake oobservations,
oformulate oa ohypothesis, omake oa oprediction, oconduct oan oexperiment, odraw oa oconclusion.
How odoes oa ohypothesis odiffer ofrom oa otheory oor oprediction o- oAnswer o- o o o- oa oprediction oonly
ooffers oa oguess oof owhat owill ohappen oin othe ofuture
- oa otheory ois oa owidely oaccepted oidea othat ohas oserious oevidence obehind oit, obacking oit oup; oex:
otheory oof oevolution
- oa ohypothesis ois oa oproposed oexplanation ofor oobserved ophenomena
- oa ohypothesis omust ogenerate otestable opredictions
- otheories oare ogenerally obroader othan ohypotheses. oA oprediction ois ogoing oto obe osomething othat
ocomes ofrom oyour ohypothesis, oa ohypothesis ois oproposed oexplanation, otested oand osupported
ohypothesis ois oa otheory
What odoes oit omean oto ocontrol oan oexperiment? o- oAnswer o- o o o- omake osure othere oare ono
ounderlying odifferenced obetween othe oexperimental ogroups
- ochange oonly oONE ovariable oat oa otime
- otreat oall osubject othe osame oexcept ofor othe oone odeviation owhich owould onot oget othe otreatment
oand obe othe ocontrol ogroup o
Ex. oThe osleep ostudy oto osee owho ogot osick oeasier, othere omight obe osomething othere obut oif oit ois
onot ocontrolled othere omay obe oother othings othere
Compare oand ocontrast osuperstitions, oanecdotal oobservations, oand opseudoscience? o- oAnswer o- o o
o- opseudoscience: owhen oindividuals omake oscientific osounding oclaims othat oare oNOT osupported oby
, otrustworthy, omethodical, oscientific ostudiesex: o"9 oout oof o10 odoctor orecommend obrand oX"How
omany odoctors owere othere? oHow owere othey oselected? oWhat owas othe oalternative oto obrand oX?
- oanecdotal oobservations: obased oon o1 oor o2 o(or oa ofew) oobservations, opeople oconclude othere ois
oor ois onot oa olink obetween o2 othings
- osuperstition: obelief oin othe osupernatural oto oexplain ophenomena oin othe onatural oworld; ousually
oarises ofrom oa omisunderstanding oof oscience
Will omore oand omore oobservations osupporting oa ohypothesis oprove oit oto obe otrue? oIf onot owhat
ohappens? o- oAnswer o- o o oMore oand omore oobservations owill onot oprove oa ohypothesis otrue, oit owill
oonly oincrease osupport ofor othe ohypothesis. oIt ocan obe oproven ofalse owith oany ocontradicting
oevidence.
What ois oevolution ohow ocan oit ooccur? oGive oan oexample. o- oAnswer o- o o oA ochange oin oallele
ofrequencies owithin oa opopulation.
Occurs othrough omutation, omigration, ogenetic odrift, oand onatural oselection. o
Ex: obirthweight oin obabies, oturkey obreast omuscle osize odue oto othe oartificial oselection othey ocannot
omate, ofur ocolor othat oblends ointo othe obackground,.
What ois onatural oselection, ohow odoes oit owork? oGive oan oexample. o- oAnswer o- o o o- onatural
oselection ois othe onon-random oelimination oof oalleles
- o3 oconditions othat oNEED oto obe osatisfied: ovariation, oheritability, odifferential oreproductive osuccess
Ex: ogiraffe onecks
What oideas oand oobservations oinfluenced oDarwin? o- oAnswer o- o o oFinch ovariation:
- oeach oisland ohad ounique ospecies
- oisland ospecies oresembled omainland ospecies
- omaybe othey oused oto obe othe osame ospecies?
Similarities obetween ofossils oof oextinct ospecies oand othe oliving ospecies oin oan oarea:
