BSC 2011 USF Bio 2 Test 1 Questions
and Correct Answers 2026-2027
Updated.
Microevolution - Answer on a small scale, change in single gene in a population over time
Macroevolution - Answer Larger Scale, relating to the formation of new species or group of
species
Species - Answer group of related organisms that share a distinctive form
Population - Answer A group of individuals that belong to the same species and live in the
same area, and can mate with each other
Lamarck - Answer First to propose that organisms change over time. Giraffes' necks got longer
to reach the taller leaves on the trees.
Natural Selection - Answer proposed by Darwin. Theory that states that the traits of an
organism that are more suited for survival and reproduction are inherited.
Natural Selection is based on..... - Answer Variation within a given species
Heritability
differential reproductive rates
Fossil - Answer traces of past organisms, preserved in rocks
Transitional form - Answer intermediate between ancestral form and descendant
Biogeography - Answer Study of past and present distribution of organisms
Homology - Answer similarity resulting from common ancestry
Anatomical Homology - Answer similar body structures among different species from a
common ancestor
, Developmental Homology - Answer species that differ in appearance as adults, but share
similarities in the embryonic stage.
Molecular Homology - Answer DNA sequences are similar between species that are more
closely related.
Convergent Evolution - Answer Process by which unrelated organisms independently evolve
similarities when adapting to similar environments
Artificial Selection - Answer breeders selects parents, over time can lead to changes in
Morphology
descent with modification - Answer principle that each living species has descended, with
changes, from other species over time
homologous structures - Answer Structures in different species that are similar because of
common ancestry.
analogous structures - Answer structures that do not have a common evolutionary origin but
are similar in function
Vestigial Structures - Answer a historical remnant of a structure that served a function for the
organisms ancestors
evolutionary tree - Answer a diagram that reflects evolutionary relationships among groups of
organisms
Adaptation - Answer A trait that helps an organism survive and reproduce
Polymorphic genes - Answer populations that have more than one allele
Monomorphic genes - Answer population with only one allele
Polymorphism - Answer 2 or more variations of a trait present in a population
Allele - Answer An alternative form of a gene. Found at the same place on a Chromosome
Genetic Variation - Answer differences among individuals within a population
and Correct Answers 2026-2027
Updated.
Microevolution - Answer on a small scale, change in single gene in a population over time
Macroevolution - Answer Larger Scale, relating to the formation of new species or group of
species
Species - Answer group of related organisms that share a distinctive form
Population - Answer A group of individuals that belong to the same species and live in the
same area, and can mate with each other
Lamarck - Answer First to propose that organisms change over time. Giraffes' necks got longer
to reach the taller leaves on the trees.
Natural Selection - Answer proposed by Darwin. Theory that states that the traits of an
organism that are more suited for survival and reproduction are inherited.
Natural Selection is based on..... - Answer Variation within a given species
Heritability
differential reproductive rates
Fossil - Answer traces of past organisms, preserved in rocks
Transitional form - Answer intermediate between ancestral form and descendant
Biogeography - Answer Study of past and present distribution of organisms
Homology - Answer similarity resulting from common ancestry
Anatomical Homology - Answer similar body structures among different species from a
common ancestor
, Developmental Homology - Answer species that differ in appearance as adults, but share
similarities in the embryonic stage.
Molecular Homology - Answer DNA sequences are similar between species that are more
closely related.
Convergent Evolution - Answer Process by which unrelated organisms independently evolve
similarities when adapting to similar environments
Artificial Selection - Answer breeders selects parents, over time can lead to changes in
Morphology
descent with modification - Answer principle that each living species has descended, with
changes, from other species over time
homologous structures - Answer Structures in different species that are similar because of
common ancestry.
analogous structures - Answer structures that do not have a common evolutionary origin but
are similar in function
Vestigial Structures - Answer a historical remnant of a structure that served a function for the
organisms ancestors
evolutionary tree - Answer a diagram that reflects evolutionary relationships among groups of
organisms
Adaptation - Answer A trait that helps an organism survive and reproduce
Polymorphic genes - Answer populations that have more than one allele
Monomorphic genes - Answer population with only one allele
Polymorphism - Answer 2 or more variations of a trait present in a population
Allele - Answer An alternative form of a gene. Found at the same place on a Chromosome
Genetic Variation - Answer differences among individuals within a population
