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2024 BIOL 1108 KSU EXAM 1 WITH CORRECT ANSWERS
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2024 BIOL 1108 KSU EXAM 1 WITH CORRECT ANSWERS
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2024 BIOL 1108 KSU EXAM 1WITH CORRECT ANSWERS
Science - CORRECT ANSWERS-a way of knowing that deals with what is
directly observable and leaves the rest to other ways of thinking
Hybridization - CORRECT ANSWERS-1. Hybrids can become less and less
common over time (species reinforcement)
2. Two species can fuse into one (species fusion)
3. Hybrids can continue to be formed indefinitely
Origin of life on earth - CORRECT ANSWERS-1. synthesis of small organic
compounds
2. synthesis of macromolecules
3. packaging of macromolecules into "protobionts"
4. origin of self-replicating molecules
Inquiry - CORRECT ANSWERS-a search for information
Discovery science - CORRECT ANSWERS-describes natural structures to
formulate hypothesis
Hypothesis based structure - CORRECT ANSWERS-specific questions, makes
predictions that can be tested, falsifiable
Scientific theory - CORRECT ANSWERS-broad in scope, generates new
hypotheses, supported by experimental evidence
Evolution - CORRECT ANSWERS-change over time in the genetic composition
of a population descent with modification
Adaptation - CORRECT ANSWERS-a genetically inherited characteristic that
enhances an organisms ability to survive and reproduce
Biological fitness - CORRECT ANSWERS-the contribution an organism makes
to the gene pool of the next generation, relative to the contribution of others
, Phylogenetic species concept - CORRECT ANSWERS-defines a species using
phylogenetic (evolutionary tree) building criteria-usually DNA based
Ring species - CORRECT ANSWERS-example of species that don't fit most
criteria
Allopatric speciation - CORRECT ANSWERS-gene flow interrupted when
population divided into geographically isolated sub-populations
Sympatric speciation - CORRECT ANSWERS-takes place in geographically
overlapping populations
-can happen because of polyploidy, new ecological opportunity, sexual
selection
Polyploidy - CORRECT ANSWERS-presence of extra sets of chromosomes due
to accidents during cell division/change in # of chromosomes
Autopolyploid - CORRECT ANSWERS-individual with more than 2 chromosome
sets, derived from one species
Allopolyploid - CORRECT ANSWERS-species with multiple sets of
chromosomes derived from different species
Punctuated equilibrium - CORRECT ANSWERS-describes this pattern of
periods of apparent stasis punctuated by sudden change
Protobionts - CORRECT ANSWERS-abiotically produced molecules surrounded
by a membrane and capable of simple metabolism
Fossil - CORRECT ANSWERS-remains or traces of life from the past
Half-life - CORRECT ANSWERS-time for 50% of the original (parent) isotope to
decay into the daughter isotope
C14 - CORRECT ANSWERS-used in organic material up to 75,000 years old
K- Ar dating - CORRECT ANSWERS-most commonly used for mineralized
fossils
Artificial selection - CORRECT ANSWERS-the intentional reproduction of
individuals in a population that have desirable traits
ex. Brassica oleracea, a wild mustard
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