Mechanisms of Evolution
Structures in Evolution
Evidence of Evolution
Evolution Trivia
Natural Selection
100
Which mechanism of evolution is best described by the better adapted organisms survive to pass traits along to offspring?
Natural Selection
100
Change over time
Evolution
100
All the possible gene combinations in a population.
gene pool
100
Genetic differences between organisms of the same species
Genetic Variation, Genetic Diversity
100
The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?
Dark moth or Light moth
Dark moth
200
An error in DNA copying that results in a new trait
mutation
200
What kind of structure is shown in this picture? Homologous or Analogous
Which structure is shown in the picture?
200
The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?
Fossil A and C are the same age
Fossil B is older than fossil C
Fossils A is older than fossil B
Fossil D is older than fossil C
Fossil D is older than fossil C
200
The father of evolution is
(Hint: Natural Selection and Galapagos Finches)
Charles Darwin
200
Any inherited trait that gives an organism an advantage in its environment is called ___.
adaptation
300
Which mechanism of evolution states that organisms get to choose their mates?
Nonrandom mating
300
Structures with the same parts have different functions; suggests that organisms share a common ancestry
(ex. human arm and whale fin)
Homologous structures
300
Study of embryos of various organisms to show a common ancestor because of similarities in development
embryology
300
New features that do not appear in fossils of ancestors.
Derived traits
300
Natural Selection is the only mechanism of evolution that is dependent not on the individual, but on the __________________.
environment
400
Which mechanism of evolution has to do with migration?
gene flow
400
Structures with the same function have different parts; suggests that organisms share a common ancestry
(ex. butterfly wings and bat wings)
analogous structure
400
What is suggested by the similary of early embryos of different species of vertebrates?
Evolution from a distant common ancestor
400
Organisms of the same species can no longer interbreed therefore creating two species.
Speciation
400
During a period of droughts in the Mojave Desert, seeds that are small and easily eaten become more and more rare,
leaving mostly seeds that are large with hard-cased shells behind. The only birds that can eat these particular seeds
are those with large beaks. If the drought continues for several more years, what should be expected to happen as a
result of natural selection?
More small-beaked birds will die than larger-beaked birds.
The offspring produced in the following generations
will have a higher percentage of birds with larger beaks.
500
Which mechanism of evolution does the bottleneck effect fall under?
genetic drift
500
Whales are aquatic mammals that contain a pelvis (hip) bone. Even though it does not aid in its movement, the function must have been used by a common ancestor of the whale. Thus, the pelvis is referred to as a(n)
vestigial structure
500
Why are advantageous traits more likely to be passed onto offspring?
So they can __________ and __________.
survive and reproduce
500
What is the difference between a population and a species?
Give an example
Species- organisms that can reproduce and produce viable offspring
Population- a group of the same species that live in a given area
500
What do I mean by "most fit" when I say "survival of the fittest?"
best fit for the environment