BIO 211 EXAM 6 IOWA STATE
QUESTIONS & CORRECT ANSWERS
How did the overwhelming biodiversity currently present on Planet Earth arise? - correct
answer ✔✔biological evolution
Charles Darwin - correct answer ✔✔- 1809 to 1882
- started as a "pre-med" student
- then studied to be a minister
- really interested in being a "naturalist"
- voyaged the world on the Beagle at age 22
Darwin's Voyage on the Beagle - correct answer ✔✔- he collected biological materials of all
kinds from many places
- collected extensively in the Galapagos Islands in the eastern Pacific
- returned to England in 1836 then spent 22 years analyzing and thinking about specimens
(wrote a book)
- book was called "The Origin of Species"
, Do species change through time? - correct answer ✔✔- authors dating back to ancient Greeks
(Plato, Aristotle, etc.) had the concept that species were constant through time
- evolution is (in part) the idea that species change through time
- the development of the theory of evolution is most closely associated with Darwin (other
contributed and had similar ideas)
Two Important Ideas of Evolution - correct answer ✔✔Idea 1: The species inhabiting the earth
have changed through time
Idea 2: Species are related by common ancestry (Darwin called this "descent with modification")
Evidence for "Idea 1" of Evolution - correct answer ✔✔- many scientists (including Darwin) had
collected numerous fossils of species that appeared not to currently exist anywhere on Earth
- evidence that the species inhabiting Earth had changed dramatically
- current estimate is that 99% of all species that have ever lived on Earth are extinct
Evidence for "Idea 2" of Evolution - correct answer ✔✔- similar species are often found in the
same geographic area
- similar species share "homologies"
Biological Evolution - correct answer ✔✔- the idea of evolution had been already been
proposed earlier by others (Jean-Baptists Lamarck and Erasmus Darwin)
QUESTIONS & CORRECT ANSWERS
How did the overwhelming biodiversity currently present on Planet Earth arise? - correct
answer ✔✔biological evolution
Charles Darwin - correct answer ✔✔- 1809 to 1882
- started as a "pre-med" student
- then studied to be a minister
- really interested in being a "naturalist"
- voyaged the world on the Beagle at age 22
Darwin's Voyage on the Beagle - correct answer ✔✔- he collected biological materials of all
kinds from many places
- collected extensively in the Galapagos Islands in the eastern Pacific
- returned to England in 1836 then spent 22 years analyzing and thinking about specimens
(wrote a book)
- book was called "The Origin of Species"
, Do species change through time? - correct answer ✔✔- authors dating back to ancient Greeks
(Plato, Aristotle, etc.) had the concept that species were constant through time
- evolution is (in part) the idea that species change through time
- the development of the theory of evolution is most closely associated with Darwin (other
contributed and had similar ideas)
Two Important Ideas of Evolution - correct answer ✔✔Idea 1: The species inhabiting the earth
have changed through time
Idea 2: Species are related by common ancestry (Darwin called this "descent with modification")
Evidence for "Idea 1" of Evolution - correct answer ✔✔- many scientists (including Darwin) had
collected numerous fossils of species that appeared not to currently exist anywhere on Earth
- evidence that the species inhabiting Earth had changed dramatically
- current estimate is that 99% of all species that have ever lived on Earth are extinct
Evidence for "Idea 2" of Evolution - correct answer ✔✔- similar species are often found in the
same geographic area
- similar species share "homologies"
Biological Evolution - correct answer ✔✔- the idea of evolution had been already been
proposed earlier by others (Jean-Baptists Lamarck and Erasmus Darwin)
