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2024 BIOLOGY 1108 EXAM 1 WITH CORRECT ANSWERS
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2024 BIOLOGY 1108 EXAM 1 WITH CORRECT ANSWERS
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2024 BIOLOGY 1108 EXAM 1WITH CORRECT ANSWERS
punctuated equilibria - CORRECT ANSWERS-periods of apparent stasis
punctuated by sudden change
evolutionary change occurs in rapid bursts separated by large periods of no
change
role of Charles Darwin and Alfred Wallace in evolutionary theory - CORRECT
ANSWERS-Darwin wrote the Origin of Species to show decent with
modification and natural selection and he went the galapogos and studied
finches
alfred wallace discovered the same after darwin and showed him so they
showed findings together
lamarks use and disuse hypothesis - CORRECT ANSWERS-said that species
could use that and pass it on to next generation and if they didnt use it then
it would disappear
lyells concept of Unitarianism - CORRECT ANSWERS-assume that things that
happen now always happened
natural selection ex: - CORRECT ANSWERS-At one time, nearly all peppered
moths were light-colored. The few dark colored moths could easily be
spotted where they rested on tree trunks, and they were eaten by birds
oldest layer of stratum is on bottom - CORRECT ANSWERS-newer fossils go
up to the surface
homologous structures - CORRECT ANSWERS-Structures in different species
that are similar because of common ancestry.
evolution - CORRECT ANSWERS-decent with modification; change in in
genetic composition of a population from generation to generation
fossils - CORRECT ANSWERS-the remains or traces of organisms from the
past
strata (stratum= singular) - CORRECT ANSWERS-superimposed layers of rock
, paleontology - CORRECT ANSWERS-study of fossils- developed by Cuvier
adaptations - CORRECT ANSWERS-inherited characteristics of organisms that
enhance their survival and reproduction in specific enviroments
natural selection - CORRECT ANSWERS-process in which individuals that
have certain inherited traits tend to survive and reproduce at a higher rates
than other individuals because of those traits
artificial selection - CORRECT ANSWERS-modified species over many
generations by selecting and breeding individuals that possess desired traits
homology - CORRECT ANSWERS-similarity resulting from common ancestry
homologous structures - CORRECT ANSWERS-Structures in different species
that are similar because of common ancestry.
vestigial structures - CORRECT ANSWERS-remnants of features that served a
function in the organisms ancestors
convergent evolution - CORRECT ANSWERS-independent evolution of similar
features in different lineages
analogous - CORRECT ANSWERS-species share features because of
convergent evolution
biogeography - CORRECT ANSWERS-scientific study of geographic
distributions of species
Pangaea - CORRECT ANSWERS-all the continents combined 250 million years
ago
microevolution - CORRECT ANSWERS-evolutionary change in populations on
smallest scale
genetic variation - CORRECT ANSWERS-variation among individuals in the
composition of their genes or other DNA sequences
neutral variation - CORRECT ANSWERS-differences in DNA sequence that do
not confer a selective advantage or disadvantage
population - CORRECT ANSWERS-group of individuals of the same species
that live in the same area and interbreed producing fertile offspring
gene pool - CORRECT ANSWERS-consists of all copies of every type of allele
at every locus in all members of a population
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