BIOL 2200 Exam 1 Questions With Correct
Answers
The |theory |of |evolution |through |natural |selection |is |considered |a |scientific |theory |because |
__________. |- |CORRECT |ANSWER✔✔-All |of |the |listed |answers |are |correct.:
- |it |is |broad |enough |in |scope |to |explain |many |observations
-it |is |supported |by |a |massive |body |of |evidence |from |many |disciplines
-it |is |general |enough |to |provide |many |testable |hypotheses
An |adaptation |is |- |CORRECT |ANSWER✔✔-a |trait |that |gives |an |organism |a |reproductive |
advantage |in |the |current |environment
EXP:
Evolutionary |adaptations |are |inherited |characteristics |that |enhance |an |organism's |ability |to |
survive |and |reproduce |in |a |particular |environment.
evolution |- |CORRECT |ANSWER✔✔-descent |with |modification. |change |genetic |comp |of |pop |b/t
|generations.
natural |selection |4 |postulates |- |CORRECT |ANSWER✔✔--many |offspring |produced, |not |all |
survive |(limited |resources)
- |traits |vary |among |individuals |w/in |pop |and |can |be |heritable |(patterns |bt |parents |and |
offspring)
,- |some |heritable |traits |provide |benefits/ |advantages |in |environment
- |advantageous |traits |give |higher |fitness |(survival |and |reproduction) |so |become |more |common
Individuals |experience |selection |- |CORRECT |ANSWER✔✔-populations |evolve
Which |of |the |following |statements |best |describes |Darwin's |theory |of |evolution |by |natural |
selection? |- |CORRECT |ANSWER✔✔-Darwin's |theory |emphasized |that |populations |vary |and |
change |over |time.
Which |of |the |following |observations |would |provide |evidence |supporting |Lamarck's |proposed |
evolutionary |mechanism |of |"inheritance |of |acquired |characteristics"? |- |CORRECT |ANSWER✔✔-
a |decrease |in |tail |length |in |dogs |after |20 |generations |of |dogs |that |had |their |tails |docked |(cut |
off) |as |puppies
hutton |- |CORRECT |ANSWER✔✔-earth |is |old |and |shaped |by |small |slow |changes-- |not |well |
received
malthus |- |CORRECT |ANSWER✔✔-economist. |populations |would |grow |unrestricted |if |resources
|weren't |scarce.
culver |- |CORRECT |ANSWER✔✔-fossils |are |evidence |of |extinction
Lamarck |- |CORRECT |ANSWER✔✔-came |up |with |evolution |originally- |had |few |things |wrong, |
changes |in |traits |through |life |w |use |and |disuse |and |passed |onto |offspring. |theory |of |acquired |
inheritance. |
weissman |disproved |w |mice |tails
, lyell |- |CORRECT |ANSWER✔✔-earth |is |old |and |same |processes |have |been |shaping |it |over |time. |
uniformitism.
James |Hutton |and |Charles |Lyell |provided |which |of |the |following |ideas |that |paved |the |way |for |
Darwin's |thinking? |- |CORRECT |ANSWER✔✔-the |surface |features |of |Earth |were |formed |slowly |
and |gradually |and |the |geological |processes |are |still |at |work
Why |do |dark-colored |rock |pocket |mice |on |dark |lava |flows |have |white |bellies? |- |CORRECT |
ANSWER✔✔-The |color |of |a |rock |pocket |mouse's |belly |is |not |visible |to |a |predator |and |
therefore |is |not |under |strong |selection |pressure.
Mutations |are |always |__________. |- |CORRECT |ANSWER✔✔-Mutations |are |rare |genetic |
changes |that |can |be |neutral, |beneficial, |or |detrimental |depending |on |an |individual's |
circumstances. |A |dark-color |fur |mutation |is |good |for |a |rock |pocket |mouse |living |on |black |lava |
and |bad |for |one |living |in |the |sandy |desert.
competitive |advantage |- |CORRECT |ANSWER✔✔-A |small |evolutionary |advantage |can |lead |to |
large |changes |in |a |population. |The |larger |the |advantage, |the |faster |the |changes |occur.
What |does |Dr. |Carroll |mean |when |he |says, |"while |mutation |is |random, |natural |selection |is |
not"? |- |CORRECT |ANSWER✔✔-Natural |selection |can |only |work |on |variation |existing |in |a |
population. |Mutation |creates |variation |randomly. |Natural |selection |is |not |random; |by |
determining |which |traits |are |passed |to |the |next |generation, |it |can |shape |populations.
After |a |drought |in |1977, |researchers |hypothesized |that |on |the |Galapagos |Island |Daphne |
Major, |medium |ground |finches |with |large, |deep |beaks |survived |better |than |those |with |smaller
|beaks |because |they |could |more |easily |crack |and |eat |the |tough |Tribulus |cistoides |fruits. |A |
tourist |company |sets |up |reliable |feeding |stations |with |a |variety |of |bird |seeds |(different |types |
and |sizes) |so |that |tourists |can |get |a |better |look |at |the |finches. |Which |of |the |following |events |
is |now |most |likely |to |occur |to |finch |beaks |on |this |island? |- |CORRECT |ANSWER✔✔-increased |
variation |in |beak |size |and |shape |over |time
Answers
The |theory |of |evolution |through |natural |selection |is |considered |a |scientific |theory |because |
__________. |- |CORRECT |ANSWER✔✔-All |of |the |listed |answers |are |correct.:
- |it |is |broad |enough |in |scope |to |explain |many |observations
-it |is |supported |by |a |massive |body |of |evidence |from |many |disciplines
-it |is |general |enough |to |provide |many |testable |hypotheses
An |adaptation |is |- |CORRECT |ANSWER✔✔-a |trait |that |gives |an |organism |a |reproductive |
advantage |in |the |current |environment
EXP:
Evolutionary |adaptations |are |inherited |characteristics |that |enhance |an |organism's |ability |to |
survive |and |reproduce |in |a |particular |environment.
evolution |- |CORRECT |ANSWER✔✔-descent |with |modification. |change |genetic |comp |of |pop |b/t
|generations.
natural |selection |4 |postulates |- |CORRECT |ANSWER✔✔--many |offspring |produced, |not |all |
survive |(limited |resources)
- |traits |vary |among |individuals |w/in |pop |and |can |be |heritable |(patterns |bt |parents |and |
offspring)
,- |some |heritable |traits |provide |benefits/ |advantages |in |environment
- |advantageous |traits |give |higher |fitness |(survival |and |reproduction) |so |become |more |common
Individuals |experience |selection |- |CORRECT |ANSWER✔✔-populations |evolve
Which |of |the |following |statements |best |describes |Darwin's |theory |of |evolution |by |natural |
selection? |- |CORRECT |ANSWER✔✔-Darwin's |theory |emphasized |that |populations |vary |and |
change |over |time.
Which |of |the |following |observations |would |provide |evidence |supporting |Lamarck's |proposed |
evolutionary |mechanism |of |"inheritance |of |acquired |characteristics"? |- |CORRECT |ANSWER✔✔-
a |decrease |in |tail |length |in |dogs |after |20 |generations |of |dogs |that |had |their |tails |docked |(cut |
off) |as |puppies
hutton |- |CORRECT |ANSWER✔✔-earth |is |old |and |shaped |by |small |slow |changes-- |not |well |
received
malthus |- |CORRECT |ANSWER✔✔-economist. |populations |would |grow |unrestricted |if |resources
|weren't |scarce.
culver |- |CORRECT |ANSWER✔✔-fossils |are |evidence |of |extinction
Lamarck |- |CORRECT |ANSWER✔✔-came |up |with |evolution |originally- |had |few |things |wrong, |
changes |in |traits |through |life |w |use |and |disuse |and |passed |onto |offspring. |theory |of |acquired |
inheritance. |
weissman |disproved |w |mice |tails
, lyell |- |CORRECT |ANSWER✔✔-earth |is |old |and |same |processes |have |been |shaping |it |over |time. |
uniformitism.
James |Hutton |and |Charles |Lyell |provided |which |of |the |following |ideas |that |paved |the |way |for |
Darwin's |thinking? |- |CORRECT |ANSWER✔✔-the |surface |features |of |Earth |were |formed |slowly |
and |gradually |and |the |geological |processes |are |still |at |work
Why |do |dark-colored |rock |pocket |mice |on |dark |lava |flows |have |white |bellies? |- |CORRECT |
ANSWER✔✔-The |color |of |a |rock |pocket |mouse's |belly |is |not |visible |to |a |predator |and |
therefore |is |not |under |strong |selection |pressure.
Mutations |are |always |__________. |- |CORRECT |ANSWER✔✔-Mutations |are |rare |genetic |
changes |that |can |be |neutral, |beneficial, |or |detrimental |depending |on |an |individual's |
circumstances. |A |dark-color |fur |mutation |is |good |for |a |rock |pocket |mouse |living |on |black |lava |
and |bad |for |one |living |in |the |sandy |desert.
competitive |advantage |- |CORRECT |ANSWER✔✔-A |small |evolutionary |advantage |can |lead |to |
large |changes |in |a |population. |The |larger |the |advantage, |the |faster |the |changes |occur.
What |does |Dr. |Carroll |mean |when |he |says, |"while |mutation |is |random, |natural |selection |is |
not"? |- |CORRECT |ANSWER✔✔-Natural |selection |can |only |work |on |variation |existing |in |a |
population. |Mutation |creates |variation |randomly. |Natural |selection |is |not |random; |by |
determining |which |traits |are |passed |to |the |next |generation, |it |can |shape |populations.
After |a |drought |in |1977, |researchers |hypothesized |that |on |the |Galapagos |Island |Daphne |
Major, |medium |ground |finches |with |large, |deep |beaks |survived |better |than |those |with |smaller
|beaks |because |they |could |more |easily |crack |and |eat |the |tough |Tribulus |cistoides |fruits. |A |
tourist |company |sets |up |reliable |feeding |stations |with |a |variety |of |bird |seeds |(different |types |
and |sizes) |so |that |tourists |can |get |a |better |look |at |the |finches. |Which |of |the |following |events |
is |now |most |likely |to |occur |to |finch |beaks |on |this |island? |- |CORRECT |ANSWER✔✔-increased |
variation |in |beak |size |and |shape |over |time
