BIOLOGY 1400 FINAL EXAM - LITTLE
UCA QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
Morphological species concept - ANS a species is a distinct group of organisms with a unique
set of morphological characteristics (unique external form).
biological species concept - ANS defines a species as one or more
population that can interbreed to produce fertile offspring but are
reproductively isolated from other groups.
reproductively isolated - ANS When two species are prevented from interbreeding
genetic heritage - ANS a particular set of genes and alleles that is typical of the species but
different from that of all other species.
Who proposed evolution? - ANS Charles Darwin
natural selection - ANS an evolutionary process that adapts a population to its environment.
What does evolution not say - ANS Evolution in NO WAY says we evolved from monkeys
• Evolution DOES NOT disprove intelligent design
• Evolution DOES NOT have a direction
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,• Nothing is more or less evolved
• Evolution IS NOT a choice
Evidence for evolution - ANS Similarity of life
• Shared characteristics
• Vestigial structures
• Development • Distribution of similar life
• Fossil record
• Observation
• Microevolution
evolutionary tree - ANS illustrates the evolutionary history of groups of organisms.
phylogenetics - ANS goal is to construct evolutionary trees that illustrate the patterns of
species evolution.
shared derived traits - ANS evolutionary novelties shared by an ancestor and its descendants
but not seen in groups that are not direct descendants of that ancestor
homologous traits - ANS are features that organisms share
because they have inherited them from a common ancestor.
vestigial organs - ANS organ that serves no useful function in an organism
plate tectonics - ANS The slow movement of the continents over time relative to one another
Microevolution - ANS is a small change in a species
• Not developing new species
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, bottleneck effect - ANS A change in allele frequency following a dramatic reduction in the size
of a population
Radioisotopes - ANS unstable forms of
elements that decay to more stable
forms at a constant rate over time.
macroevolution - ANS refers to large-scale changes in organisms, generally occurring over
millions of years.
adaptive radiation - ANS An evolutionary pattern in which many species evolve from a single
ancestral species
speciation - ANS the process in which one species splits to form
two or more species that are reproductively isolated from each other.
4 mechanisms of evolution - ANS The 4 mechanisms are: • Natural Selection
• Genetic Drift • Gene Flow
• Mutation
gene pool - ANS the sum of all the genetic information carried by all the individuals in a
population.
gene flow - ANS the movement of genes from one population to another.
genetic drift - ANS a random process that can cause the gene pool of a population to change
randomly from one generation to the next over time.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
UCA QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
Morphological species concept - ANS a species is a distinct group of organisms with a unique
set of morphological characteristics (unique external form).
biological species concept - ANS defines a species as one or more
population that can interbreed to produce fertile offspring but are
reproductively isolated from other groups.
reproductively isolated - ANS When two species are prevented from interbreeding
genetic heritage - ANS a particular set of genes and alleles that is typical of the species but
different from that of all other species.
Who proposed evolution? - ANS Charles Darwin
natural selection - ANS an evolutionary process that adapts a population to its environment.
What does evolution not say - ANS Evolution in NO WAY says we evolved from monkeys
• Evolution DOES NOT disprove intelligent design
• Evolution DOES NOT have a direction
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,• Nothing is more or less evolved
• Evolution IS NOT a choice
Evidence for evolution - ANS Similarity of life
• Shared characteristics
• Vestigial structures
• Development • Distribution of similar life
• Fossil record
• Observation
• Microevolution
evolutionary tree - ANS illustrates the evolutionary history of groups of organisms.
phylogenetics - ANS goal is to construct evolutionary trees that illustrate the patterns of
species evolution.
shared derived traits - ANS evolutionary novelties shared by an ancestor and its descendants
but not seen in groups that are not direct descendants of that ancestor
homologous traits - ANS are features that organisms share
because they have inherited them from a common ancestor.
vestigial organs - ANS organ that serves no useful function in an organism
plate tectonics - ANS The slow movement of the continents over time relative to one another
Microevolution - ANS is a small change in a species
• Not developing new species
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, bottleneck effect - ANS A change in allele frequency following a dramatic reduction in the size
of a population
Radioisotopes - ANS unstable forms of
elements that decay to more stable
forms at a constant rate over time.
macroevolution - ANS refers to large-scale changes in organisms, generally occurring over
millions of years.
adaptive radiation - ANS An evolutionary pattern in which many species evolve from a single
ancestral species
speciation - ANS the process in which one species splits to form
two or more species that are reproductively isolated from each other.
4 mechanisms of evolution - ANS The 4 mechanisms are: • Natural Selection
• Genetic Drift • Gene Flow
• Mutation
gene pool - ANS the sum of all the genetic information carried by all the individuals in a
population.
gene flow - ANS the movement of genes from one population to another.
genetic drift - ANS a random process that can cause the gene pool of a population to change
randomly from one generation to the next over time.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
