BSC 2011 QUESTION AND
ANSWERS EXAM 1
BSC20112025
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
,descent with modification
principle that each living species has descended, with changes, from other species over
time
Homology
similarity resulting from common ancestry
homologous structures
similar structures that related species have inherited from a common ancestor
analogous structures
structures that do not have a common evolutionary origin but are similar in function
convergent evolution
Evolution toward similar characteristics in unrelated species
Fossil
The preserved remains or traces of an organism that lived in the past
vestigial structures
, A structure that is present in an organism but no longer serves its original purpose
evolutionary tree
A branching diagram that reflects a hypothesis about evolutionary relationships among
groups of organisms.
Biogeography
study of the distribution of organisms around the world
artificial selection
Selection by humans for breeding of useful traits from the natural variation among
different organisms
Adaptation
A characteristic that improves an individual's ability to survive and reproduce in a
particular environment.
Evolution
Change of one or more a kind of organism from one generation to the next; process by
which modern organisms have descended from ancient organisms. Occurs in
populations
ANSWERS EXAM 1
BSC20112025
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
,descent with modification
principle that each living species has descended, with changes, from other species over
time
Homology
similarity resulting from common ancestry
homologous structures
similar structures that related species have inherited from a common ancestor
analogous structures
structures that do not have a common evolutionary origin but are similar in function
convergent evolution
Evolution toward similar characteristics in unrelated species
Fossil
The preserved remains or traces of an organism that lived in the past
vestigial structures
, A structure that is present in an organism but no longer serves its original purpose
evolutionary tree
A branching diagram that reflects a hypothesis about evolutionary relationships among
groups of organisms.
Biogeography
study of the distribution of organisms around the world
artificial selection
Selection by humans for breeding of useful traits from the natural variation among
different organisms
Adaptation
A characteristic that improves an individual's ability to survive and reproduce in a
particular environment.
Evolution
Change of one or more a kind of organism from one generation to the next; process by
which modern organisms have descended from ancient organisms. Occurs in
populations
