What are the common misconceptions of evolution? - ANSWERS- We evolved from apes
- Missing links
- "Survival of the fittest"
'Survival of the fittest' - ANSWERSThe individual that reproduces the most offspring is the 'fittest'
Evolution is based on... - ANSWERSReproduction aka natural sele...
BIO 109 - Evolution Exam #3 Questions
& Answers
What are the common misconceptions of evolution? - ANSWERS- We evolved from
apes
- Missing links
- "Survival of the fittest"
'Survival of the fittest' - ANSWERSThe individual that reproduces the most offspring is
the 'fittest'
Evolution is based on... - ANSWERSReproduction aka natural selection
Butterfly A lays 5 eggs per year and live 10 yrs
Butterfly B lays 50 eggs per year, and live for 1 year
Which is the 'fittest' - ANSWERSButterfly B
T or F: There are no missing links - ANSWERSTRUE
Lamarck 1801 - ANSWERSBefore Darwin, he came up w/ the Inheritance of Acquired
Characteristics (traits passed down)
- The subconscious desires of an organism can cause changes in traits
- Those changes caused by increased use or disuse will be passed onto the offspring of
that individual
Darwin - ANSWERS- studied medicine and theology
- a naturalist on a 5 year voyage on the HMS Beagle 1831
- wrote "The Origin of Species" 1859
Darwin and Wallace - ANSWERS- While researching at his home, Darwin received a
letter from A. Wallace
- Wallace was a a young naturalist collecting organisms in S. America
- This letter was asking advice about about and idea Wallace had been working on
Evolution is... - ANSWERSthe genetic change in organisms over time through
reproduction
3 main points of evolution - ANSWERS1. Populations evolve not individuals
2. Evolution mainly occurs through Natural Selection
3. Evolution is the main unifying theme of all biology
ex. pepper moth turning black to white
, Natural Selection - ANSWERS1. Variation in form and behavior b/w member of a
species exists
2. These variations are inheritable from one generation to the next
3. There is competition b/w individuals of a population or species
4. Individual w/ adaptive traits will reproduce and pass those traits on w/ greater
frequency to generations
7 Evidences of Evolution - ANSWERS1. Fossil Record
2. Artificial Selection
3. Evolution in Action
4. Comparative Anatomy
5. Comparative Embryology
6. Biochemistry & DNA
7. Biogeography
1. Fossil Record - ANSWERSThey are evidence of past living organisms
EX: feces, skin/feather impressions, eggs, footprint, bones
What do fossils tell us? - ANSWERS- Past organisms are different from today's living
ones
- Fossil layers show a trend in evolution from simple to more complex( (generally)
- Intermediate (missing links) fossil are being found now
2. Artificial Selection - ANSWERS- shows that change can occur and the environment
can cause it
- many examples from our domestication of plants & animals
"Man is the environment" aka choosing the environment
ex: - dog breeds from wolves
- wild mustard plant
3. Evolution in action - ANSWERS- pesticide resistance in insects
- bacterial and viral resistance to medicine
ex: staph infection (mushy bones)
4. Comparative anatomy - ANSWERS- comparing the structure of organisms to see if
individuals are related or not
Homologous structure - ANSWERSstructure that have the same framework (internal
structure)
Function DOES NOT matter
ex: human and cat (same genetics)
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