BIO 109 - Evolution Exam #3 Questions with
Correct Answers
What do fossils tell us? - 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 - 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 - pesticide resistance in insects
- bacterial and viral resistance to medicine
ex: staph infection (mushy bones)
, 4. Comparative anatomy - comparing the structure of organisms to see if individuals are
related or not
3 types structures found 1. Homologous
2. Analogous
3. Vestigial
Homologous structure structure that have the same framework (internal structure)
Function DOES NOT matter
ex: human and cat (same genetics)
Analogous structure structure DO NOT have the same framework
ex: bird wings vs insect wings (different genetics)
Vestigial structure structure that are present in an organism but has no function but are
used in related organism
ex: human tailbone, whale femur, dolphin finger bones
Correct Answers
What do fossils tell us? - 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 - 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 - pesticide resistance in insects
- bacterial and viral resistance to medicine
ex: staph infection (mushy bones)
, 4. Comparative anatomy - comparing the structure of organisms to see if individuals are
related or not
3 types structures found 1. Homologous
2. Analogous
3. Vestigial
Homologous structure structure that have the same framework (internal structure)
Function DOES NOT matter
ex: human and cat (same genetics)
Analogous structure structure DO NOT have the same framework
ex: bird wings vs insect wings (different genetics)
Vestigial structure structure that are present in an organism but has no function but are
used in related organism
ex: human tailbone, whale femur, dolphin finger bones
