GCU BIO-182 EXAM I QUESTIONS
WITH CORRECT ANSWERS
Aerobes - Correct Answers -organisms that require oxygen to live
Allopatric Speciation - Correct Answers -gene flow is interrupted when a population is
divided into geographically isolated subpopulations
Anaerobes - Correct Answers -organisms that do not require oxygen to live
Artificial Selection - Correct Answers -process of deliberately selecting and breeding
individuals with desired traits
Biological Species Concept - Correct Answers -defining a species as a population
whose members have the potential to interbreed in nature and produce viable, fertile
offspring
Creationism - Correct Answers -viewpoint on the origin of life which references a divine
creator
Disruptive Selection - Correct Answers -The largest and smallest individuals contribute
more offspring than those at the middle
Ecological Species Concept - Correct Answers -Defining a species based on its role in
the biological community and the set of environmental resources used
Eukaryotes - Correct Answers -Single or multi-cellular organism with membrane-bound
organelles
Evolution - Correct Answers -Scientific concept that all life descended from a common
progenitor
Gene Flow - Correct Answers -Movement of alleles among populations
Genetic Drift - Correct Answers -Allele frequencies fluctuate unpredictably from one
generation to the next
Linnaeus - Correct Answers -Developed binomial nomenclature used to name and
classify organisms
Macroevolution - Correct Answers -Evolutionary changes that result in speciation
, Phylogeny - Correct Answers -Study of adaptive changes within a population
Population - Correct Answers -This is the smallest entity that can evolve according to
evolutionary theory
Postzygotic - Correct Answers -Does not develop into a viable, fertile adult, or hybrids
that are vigorous but sterile
Prezygotic - Correct Answers -Spatial isolation is an example of this barrier
Prokaryotes - Correct Answers -Single-celled organism lacking membrane-bound
organelles
Stabilizing Selection - Correct Answers -This type of selection occurs when both the
largest and smallest individuals contribute fewer offspring to the next generation
Sympatric Speciation - Correct Answers -Speciation that occurs in populations that live
in the same geographic area
Speciation - Correct Answers -Formation of a new genetically distinct species
Gradualism - Correct Answers -Profound geological changes took place through the
cumulative effects of low but continuous processes identical to those currently operating
Microevolution - Correct Answers -Characters (such as height) are those that vary along
a continuum within a population
Quantitative - Correct Answers -Classification of organisms based on their evolutionary
history
Amoebozoans - Correct Answers -A protist in a clade that includes many species with
lobe- or tube-shaped pseudopodia; includes: slime molds, tubulinids, and entamoebas
Heterocysts - Correct Answers -Cells which carry out only nitrogen fixation; these cells
are part of a photosynthetic cyanobacteria
Alveolates - Correct Answers -have membrane-enclosed sacs (alveoli) just under the
plasma membrane
Parasites - Correct Answers -an organism that lives in or on another organism, deriving
nourishment at the expense of its host, usually without killing it
Pheromones - Correct Answers -chemical signals released by an animal that
communicate information and affect the behavior of other animals of the same species
WITH CORRECT ANSWERS
Aerobes - Correct Answers -organisms that require oxygen to live
Allopatric Speciation - Correct Answers -gene flow is interrupted when a population is
divided into geographically isolated subpopulations
Anaerobes - Correct Answers -organisms that do not require oxygen to live
Artificial Selection - Correct Answers -process of deliberately selecting and breeding
individuals with desired traits
Biological Species Concept - Correct Answers -defining a species as a population
whose members have the potential to interbreed in nature and produce viable, fertile
offspring
Creationism - Correct Answers -viewpoint on the origin of life which references a divine
creator
Disruptive Selection - Correct Answers -The largest and smallest individuals contribute
more offspring than those at the middle
Ecological Species Concept - Correct Answers -Defining a species based on its role in
the biological community and the set of environmental resources used
Eukaryotes - Correct Answers -Single or multi-cellular organism with membrane-bound
organelles
Evolution - Correct Answers -Scientific concept that all life descended from a common
progenitor
Gene Flow - Correct Answers -Movement of alleles among populations
Genetic Drift - Correct Answers -Allele frequencies fluctuate unpredictably from one
generation to the next
Linnaeus - Correct Answers -Developed binomial nomenclature used to name and
classify organisms
Macroevolution - Correct Answers -Evolutionary changes that result in speciation
, Phylogeny - Correct Answers -Study of adaptive changes within a population
Population - Correct Answers -This is the smallest entity that can evolve according to
evolutionary theory
Postzygotic - Correct Answers -Does not develop into a viable, fertile adult, or hybrids
that are vigorous but sterile
Prezygotic - Correct Answers -Spatial isolation is an example of this barrier
Prokaryotes - Correct Answers -Single-celled organism lacking membrane-bound
organelles
Stabilizing Selection - Correct Answers -This type of selection occurs when both the
largest and smallest individuals contribute fewer offspring to the next generation
Sympatric Speciation - Correct Answers -Speciation that occurs in populations that live
in the same geographic area
Speciation - Correct Answers -Formation of a new genetically distinct species
Gradualism - Correct Answers -Profound geological changes took place through the
cumulative effects of low but continuous processes identical to those currently operating
Microevolution - Correct Answers -Characters (such as height) are those that vary along
a continuum within a population
Quantitative - Correct Answers -Classification of organisms based on their evolutionary
history
Amoebozoans - Correct Answers -A protist in a clade that includes many species with
lobe- or tube-shaped pseudopodia; includes: slime molds, tubulinids, and entamoebas
Heterocysts - Correct Answers -Cells which carry out only nitrogen fixation; these cells
are part of a photosynthetic cyanobacteria
Alveolates - Correct Answers -have membrane-enclosed sacs (alveoli) just under the
plasma membrane
Parasites - Correct Answers -an organism that lives in or on another organism, deriving
nourishment at the expense of its host, usually without killing it
Pheromones - Correct Answers -chemical signals released by an animal that
communicate information and affect the behavior of other animals of the same species
