Bio 182 Final ACTUAL UPDATED
Questions and CORRECT Answers
Which of the following would be an example of convergent evolution?
1. Hummingbird bill sizes changing shape to fit easily into flowers
2.competition among finches of Galápagos Islands causing speciation
3. Anteaters in Australia and anteaters in South America both developing long, narrow skulls
4.Maple trees migrating northward after glaciers started to reced in North America - CORRECT
ANSWERS 3. Anteaters in Australia and anteaters in South America both developing long,
narrow skulls
natural selections based on all of the following EXCEPT which below?
1. An individual organism adapts to its environment and thus, evolve.
2. Genetic variation exists within population
3. The best adapted individuals tend to leave the most offspring
4.populations tend to produce more individuals than their environment can support - CORRECT
ANSWERS 1. An individual organism adapts to its environment and thus, evolve.
In the mid-1900s, a Soviet geneticist named Lysenko believed that one individual wheat plant,
when exposed to ever colder temperatures and then fertilized, would eventually start to produce
more cold tolerant offspring. Lysenko's hypothesis here was most in agreement with the ideas of:
1.Hutton
,2.Lamarck
3.Darwin
4.Lyell - CORRECT ANSWERS 3. Lamarck
Darwin's explain action of natural selection required long time spans (millions of years) in order
to modify populations. From where did Darwin first get the concept of the Earth's ancient age?
1. Charles Lyell
2. Catholic Church
3. Alfred Wallace
4. Thomas Malthus - CORRECT ANSWERS 1. Charles Lyell
Structures as different as human arms, bat wings, and dolphin flippers contain many of the same
bones and these bones have developed from very similar embryonic tissues. How do biologists
interpret here similarities?
1.by proposing that humans,bats and dolphins share a recent common ancestor
2. By identifying the bones as being analogous traits generated by different environments
3.by the principle of convergent evolution which produces similar traits - CORRECT
ANSWERS 1. by proposing that humans,bats and dolphins share a recent common
ancestor
,In one river, fish called pike-cichlids are visual predators of smaller fish. The pike-cichlids locate
their prey by sight. If a population of the smaller fish experiences predation pressure from the
pike-cichlids, which of the following should least likely be observed in the smaller fish
population, over the course of many generations? (Pick the answer that is false)
1. Selection for nocturnal smaller fish
2.selection for males that attract females with bright coloration
3.selection for smaller fish that are faster swimmers - CORRECT ANSWERS 2.selection
for males that attract females with bright coloration
Ichthyosaurs were ancient Asiatic reptiles. Fossils show us that they had dorsal fins and tails, like
fish do, even though their closest relatives were not aquatic, but instead land-dwelling reptiles
that didn't have dorsal fins nor tails. Thus, the dorsal fins and tails of ichthyosaurs and fish are:
(select all that apply)
1. Homologous
2.examples of convergent evolution
3. Adaptions to a common environment
4.divergent similarities - CORRECT ANSWERS 2.examples of convergent evolution
3. Adaptions to a common environment
Evolution requires variation which can come from a random process called_________, but this
variation can be edited by the non-random portion of evolution called________.
1. Mutation; natural selection
, 2. Mutation; artificial selection
3. Selection; environment
4.mutation;carnal selection - CORRECT ANSWERS 1. Mutation;natural selection
Male peacock spiders have very colorful abdomens and perform elaborate dances to entice
mates. Because these colors provide no other benefit for the organism, they are likely the result
of what type of selection?
1.disruptive
2. Convergent
3. Artificial
4. Sexual - CORRECT ANSWERS 4. Sexual
Over time, the movement of people around the earth has steadily increased. This has altered the
course of human evolution by increasing:
1. Genetic stability
2. Geographic isolation
3.genetic drift
4.gene flow - CORRECT ANSWERS 4. Gene flow
Questions and CORRECT Answers
Which of the following would be an example of convergent evolution?
1. Hummingbird bill sizes changing shape to fit easily into flowers
2.competition among finches of Galápagos Islands causing speciation
3. Anteaters in Australia and anteaters in South America both developing long, narrow skulls
4.Maple trees migrating northward after glaciers started to reced in North America - CORRECT
ANSWERS 3. Anteaters in Australia and anteaters in South America both developing long,
narrow skulls
natural selections based on all of the following EXCEPT which below?
1. An individual organism adapts to its environment and thus, evolve.
2. Genetic variation exists within population
3. The best adapted individuals tend to leave the most offspring
4.populations tend to produce more individuals than their environment can support - CORRECT
ANSWERS 1. An individual organism adapts to its environment and thus, evolve.
In the mid-1900s, a Soviet geneticist named Lysenko believed that one individual wheat plant,
when exposed to ever colder temperatures and then fertilized, would eventually start to produce
more cold tolerant offspring. Lysenko's hypothesis here was most in agreement with the ideas of:
1.Hutton
,2.Lamarck
3.Darwin
4.Lyell - CORRECT ANSWERS 3. Lamarck
Darwin's explain action of natural selection required long time spans (millions of years) in order
to modify populations. From where did Darwin first get the concept of the Earth's ancient age?
1. Charles Lyell
2. Catholic Church
3. Alfred Wallace
4. Thomas Malthus - CORRECT ANSWERS 1. Charles Lyell
Structures as different as human arms, bat wings, and dolphin flippers contain many of the same
bones and these bones have developed from very similar embryonic tissues. How do biologists
interpret here similarities?
1.by proposing that humans,bats and dolphins share a recent common ancestor
2. By identifying the bones as being analogous traits generated by different environments
3.by the principle of convergent evolution which produces similar traits - CORRECT
ANSWERS 1. by proposing that humans,bats and dolphins share a recent common
ancestor
,In one river, fish called pike-cichlids are visual predators of smaller fish. The pike-cichlids locate
their prey by sight. If a population of the smaller fish experiences predation pressure from the
pike-cichlids, which of the following should least likely be observed in the smaller fish
population, over the course of many generations? (Pick the answer that is false)
1. Selection for nocturnal smaller fish
2.selection for males that attract females with bright coloration
3.selection for smaller fish that are faster swimmers - CORRECT ANSWERS 2.selection
for males that attract females with bright coloration
Ichthyosaurs were ancient Asiatic reptiles. Fossils show us that they had dorsal fins and tails, like
fish do, even though their closest relatives were not aquatic, but instead land-dwelling reptiles
that didn't have dorsal fins nor tails. Thus, the dorsal fins and tails of ichthyosaurs and fish are:
(select all that apply)
1. Homologous
2.examples of convergent evolution
3. Adaptions to a common environment
4.divergent similarities - CORRECT ANSWERS 2.examples of convergent evolution
3. Adaptions to a common environment
Evolution requires variation which can come from a random process called_________, but this
variation can be edited by the non-random portion of evolution called________.
1. Mutation; natural selection
, 2. Mutation; artificial selection
3. Selection; environment
4.mutation;carnal selection - CORRECT ANSWERS 1. Mutation;natural selection
Male peacock spiders have very colorful abdomens and perform elaborate dances to entice
mates. Because these colors provide no other benefit for the organism, they are likely the result
of what type of selection?
1.disruptive
2. Convergent
3. Artificial
4. Sexual - CORRECT ANSWERS 4. Sexual
Over time, the movement of people around the earth has steadily increased. This has altered the
course of human evolution by increasing:
1. Genetic stability
2. Geographic isolation
3.genetic drift
4.gene flow - CORRECT ANSWERS 4. Gene flow
