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Biology 112 Final Exam with correct answers
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Biology 112 Final Exam with correctanswers
Adaptive evolution results from - correct answer -natural selection
Analogous traits are - correct answer -evolve independently under similar environmental conditions
Match the definition with the correct term. Definition: the movement of a gene (gene flow) from one
species into the gene pool of another by the repeated backcrossing of an interspecific hybrid with one of
its parent species. - correct answer -introgression
The study of the distribution of species and ecosystems in geographic space and through geological
time. - correct answer -Biogeography
Currently, the most widely accepted higher classification system, divides all living organisms into -
correct answer -3 Domains
The hierarchical system of classifying and naming organisms which is in use today and was originally
developed by - correct answer -Linnaeus
The potential for competition increases with - correct answer -increasing phenotypic similarity
The sugar glider, a marsupial mammal native to Australia, and the flying squirrel, a placental mammal
from North America, have very similar morphological features (Physical forms) and ecological niches yet
they are only distantly related and evolved on land masses that were and are isolated from one another.
Thus these mammals are thought to ... - correct answer -have independently evolved the traits that they
share as a result of experiencing similar environments and ecological settings
The tendency of distantly related organisms to evolved superficially similar characteristics under similar
environmental conditions is called - correct answer -convergence
,Darwin hypothesized that the finches of the Galapagos Islands diverged from a common ancestor to fill
open ecological niches in a process that we now call - correct answer -adaptive radiation
select the correct interpretation of the figures below, which depicts the results of a study of Daphnia
respiration rates - correct answer -water flea respiration rates increase with increasing body mass
match the definition with the correct term. Definition: the abiotic and biotic conditions that a species
needs to grow, survive and reproduce - correct answer -ecological niche
The axiom that all life evolved from one or a few simple kind of organism is a postulate of the theory of -
correct answer -Descent with modification
groups of actually or potentially interbreeding natural populations which are reproductively isolated
from other such groups - correct answer -Mayr's Biological species concept
evolutionary theory predicts that interspecific competition - correct answer -... potentially limits the
fitness of all participants, and thus adaptations that minimize competition are considered to be adaptive
Two species that use a limiting resource in the same way cannot coexist indefinitely - correct answer -
competitive exclusion principle
A population of organisms has the tendency and the potential to increase at a geometric rate - correct
answer -natural selection
the first published manuscript on natural selection, "on the tendency of species to form varieties; and on
the perpetuation of varieties and species by natural means of selection," was co-authored in 1858 by
charles darwin and ... - correct answer -Alfred Russel Wallace
To an evolutionary biologist ________ simply means reproductive success and reflects how well an
organism is adapted to its environment - correct answer -fitness
select the best interpretation of the data in this figure from Gause's classic work on "the struggle for
existence" among laboratory populations of paramecium bursaria and P. caudatum - correct answer -the
, presence of another species imposes limits on growth rate and carrying capacity of both paramecium
caudatum and P. bursaria, but stable coexistence is possible
In the figure below, line A represents __________ growth and line B represents _______ growth -
correct answer -(A) exponential, (B) logistic
A mule is a sterile hybrid born to a female horse that mated with a male donkey. Mule sterility is an
example of - correct answer -postzygotic isolation
Natural selection results in - correct answer -adaptive change in allele frequencies within a population
which of the following traits can continue to evolve via natural selection - correct answer -an enzyme
variant that improves digestive efficiency for a subset of a population that inherited the variant
which of the following traits cannot continue to evolve via natural selection? - correct answer -A lethal
sperm cell mutation
Which of the following traits cannot continue to evolve via natural selection - correct answer -An allele
carried by all members of a population involving oxidative metabolism regulation (assuming no further
mutations arise)
In order for natural selection to act on a mutation that arises in a population, that mutation must be
present in the DNA of _____ cells. - correct answer -germ-line
Natural selection acts on ______ - correct answer -individuals, and as a result, adaptive evolutionary
change occurs in populations
which is the correct way to write the name of a biological species? - correct answer -Homo sapiens
(italicized) Linnaeus, 1758
The northern spotted owl and mexican spotted owl arose from geographically isolated populations of
the same ancestral owl species. The evolution of the Northern spotted owl and the mexican spotted owl
is an example of ______ - correct answer -allopatric speciation
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