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Bio 182 Exam 1/44 Questions and Answers
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Bio 182 Exam 1/44 Questions and Answers
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Bio 182 Exam 1/44 Questions andAnswers
Common Descent - -principle that all living things were derived from
common ancestors
-Natural Selection - -Differential reproductive success of individuals of a
population, due to inherited differences between them. IE Some individuals
have lots of strong traits or adaptations, that allow them to live longer and
mate more.
-What is the result of Natural Selection? - -Evolution
-Evolution - -a change in the allele frequencies in a population over an
extended period of time.
-Homology - -Similarity in characteristics resulting from a shared ancestry.
-Biogeography - -dealing with the geographical distribution of animals and
plants
-Comparative Anatomy - -The comparison of body structures and how they
vary among species
-Karyotype - -A picture of all the chromosomes in a cell arranged in pairs
-Fossils - -works because of the formation of sedimentary rocks. Best fossils
come from ocean sediments.
-Scientific Theory - -A broad explanation that has been subjected to a lot of
testing, that reliably gives up accurate predictions.
A Theory tells you why something is true
-Scientific Theory - -1. Helps explain the why of things that we already know
to be true.
2. Reveals connections between known facts that are not already known to
be true.
3. Allows to accurately predict new facts (most important)
-Biological species concept - -A group of similar organisms, that will mate
with one another under natural conditions. And produce fertile offspring.
-Morphological Species concept - -(Most species identified using this
method) Organisms are classified in the same species if they appear
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