BIO 117 Exam 1 Study Guide | Complete Notes, Key Concepts & Exam Prep

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BIO 117 Exam 1 Study Guide | Complete Notes, Key Concepts & Exam Prep

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14 pages

2025/2026

Institution BIO 117 MODULE 1

Course BIO 117 MODULE 1

Preview 2 out of 14 pages

Prepare effectively for your BIO 117 Exam 1 with this comprehensive and easy-to-understand study guide. This document includes key concepts, summarized notes, and essential topics designed to help you master the material and perform confidently on your exam. Ideal for both detailed study and last-minute revision, this guide simplifie

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BIOghn117ghnExamghn1

Whatghnisghnanghnadaptation?ghn-
ghnCORRECTghnANSWER✔aghntraitghnthatghnimprovesghntheghnfitnessghnofghnitsg

hnbearer,ghncomparedghnwithghnindividualsghnwithoutghntheghntrait

Howghncanghnbiologicalghnfitnessghnbeghnestimated?ghn-
ghnCORRECTghnANSWER✔Countghntheghnnumberghnofghnhealthy,ghnfertile ghno

ffspringghnproducedghnbyghndifferentghnindividualsghninghnaghnpopulation.

AllghnofghntheghnfollowingghnareghntrueghnforghnnaturalghnselectionghnEXCEPT:
-
Variationghnexistsghninghnpopulationsghn(allghnindividualsghnareghnNOTghntheghnsa
ghn

me).
-
Characteristicsghnacquiredghnbyghnindividualsghnoverghntheghncourseghnofghntheirghn
lifetime,ghne.g.ghnbigghnmusclesghnfromghnweightghnliftingghnareghnpassedghnonghntogh
ntheirghnoffspring.

-
Thereghnisghndifferentialghnreproductiveghnsuccessghnwithinghnpopulations,ghni.e.gh
nsomeghnindividualsghnhaveghnmoreghnoffspring ghnthanghnothers.

-Theghnfittestghnindividualsghnleaveghntheghnmostghnoffspring.ghn-
ghnCORRECTghnANSWER✔Characteristics ghnacquiredghnbyghnindividualsghn

overghntheghncourseghnofghntheirghnlifetime,ghne.g.ghnbigghnmusclesghnfromghnweightgh
nliftingghnareghnpassedghnonghntoghntheirghnoffspring.

, Whatghnisghnaghnmainghndrivingghnforceghnbehindghnnaturalghnselection?ghn-
ghnCORRECTghnANSWER✔Theghnenvironment

Vestigialghntraitsghnareghn_____.ghn-
ghnCORRECTghnANSWER✔remnantsghnofghnstructuresghnthatghnwereghnusefulg

hntoghnanghnorganism'sghnancestors

TRUE/
FALSE:ghnNewghntraitsghninghnaghnpopulationghnariseghn(comeghnintoghnexistence)gh
ninghnresponseghntoghnneedghn(i.e.ghnNEEDghncanghnevokeghnnewghnallelesghninghnaghnp

opulation).ghn-ghnCORRECTghnANSWER✔False

Newghnallelesghnoriginateghnfromghn_______.ghn-
ghnCORRECTghnANSWER✔mutations

Accordingghntoghn________,ghntraitsghnacquiredghnduringghnanghnindividual'sghnlif
etimeghnwillghnbeghninheritedghnbyghnoffspring.ghn-
ghnCORRECTghnANSWER✔Lamarck

Alleleghnfrequenciesghnchangeghnasghnaghnresultghnofghn__________.
-Mutation
-Geneticghndrift
-Geneghnflowghn(immigration/emigration)
-Naturalghnselection
-Allghnofghntheghnaboveghn-ghnCORRECTghnANSWER✔Allghnofghntheghnabove

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Uploaded on: April 1, 2026
Number of pages: 14
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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BIO 117 Exam 1 Study Guide | Complete Notes, Key Concepts & Exam Prep

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