1. Unit 11- Evolution Clicker Review
ANSWERS ARE FOUND AT THE LAST SLIDE

2. 1. Which fossils are older?
closer to the top
closer to the bottom
in the middle
Unable to tell

3. 2. If a paleontologist finds fossils of many different species existing in the same area at approximately the same time, the paleontologist can conclude that the ecosystem in this area had a high degree of
Climatic Variation
Episodic Speciation
Geographic Isolation
Biological Diversity
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4. 3. According to this information, which group demonstrated the greatest biodiversity during the Cretaceous period?
dinosaurs
crocodilians
snakes
lizards
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5. 4. In a population of moths, wing color became darker over time
4. In a population of moths, wing color became darker over time. Which of the following is the best evidence that the change in wing color was an evolutionary change?
The size of the moth population changed
The average length of the moths’ dark wings increased
The number of eggs that females laid during each breeding season increased
The frequencies of the alleles for dark wing color in the moth population changed
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6. 5. Which of these would have the least effect on natural selection in a subspecies of giraffes that is geographically isolated from other subspecies of giraffes?
available niches
existing predators
chromosome number
available food resources

7. 6. Which of these best illustrates natural selection?
An organism with favorable genetic variations will tend to survive and breed successfully
A population monopolizes all of the resources in its habitat, forcing other species to migrate
A community whose members work together utilizes all existing resources and migratory routes
The largest organisms in a species receive the only breeding opportunities
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8. 7. A species of finch has been studied on one of the geographically isolated Galapagos Islands for many years. Since the island is small, the lineage of every bird for several generations is known. This allows a family tree of each bird to be developed. Some family groups have survived and others have died out. The groups that survive probably have
interbred with other species
found new places on the island to live
been attacked by more predators
inherited some advantageous variations

9. 8. What do the similarities of the structures suggest about these organisms?
They grow at the same rate
They live in the same environment
They evolved from a common ancestor
They live for the same length of time
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10. 9. What are these structures called?
Homologous
Analogous
Vestigial
Adaptation
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11. 10. A Change in a population of organisms over time is defined as
Natural Selection
Evolution
Artificial Selection
Adaptation
Fitness
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12. Allopatric Speciation Sympatric Speciation Temporal Isolation
11. The different species of Hawaiian honeycreepers shown all descended from a single species of North American bird. They now have different beaks, eat different foods, sing different songs, and live in different environments on the islands. Which factor probably contributed most to the development of these different species?
Loss of habitat
Allopatric Speciation
Sympatric Speciation
Temporal Isolation
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13. 12. An early biological theory stated that a change in a population can occur when organisms with favorable variations for a particular environment survive and pass these variations on to the next generation. This theory is better known as the Theory of —
Punctuated Selection
Acquired Characteristics
Variation and Adaptation
Natural Selection

14. Male-to-female ration
13. Lemur body types can vary widely. In addition to fossils and comparative anatomy, which of the following types of evidence can scientists reliably use to study the evolution of the variety of lemur body types?
Lifespan
Population size
DNA sequences
Male-to-female ration
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15. 14. Which of the following statements best explains why geographic isolation can lead to speciation?
Physical separation of populations reduces competition for each group
Physical separation of populations prevents interbreeding and mixing of gene pools
Physical separation of populations provides more space for each group’s size to increase
Physical separation of populations stresses the organisms and causes mutations in their genetic code
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16. 15. Which match is not correct
Darwin- Natural Selection
Malthus- acquired traits
Lamarck- uses and disuse
Forbes- land bridges
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17. 16. Snakes still have a pelvises, this is an example of what type of structure?
Homologous
Vestigial
Analogous
Adaptation
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18. 17. Studding the early stages of animal development is
Genetic drift
embryology
DNA sequencing
Geographical distribution
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19. 18. What would cause genetic equilibrium in a population
Frequent mutations
Small population
Genetic drift
Random mating
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20. 19. If a species of insect lacks the variations needed to adapt to a changing environment, it will most likely
Acquire them through evolution
Evolve into a lower form
Become extinct
Evolve into a higher form

21. 20. 2 groups of birds do not reproduce together because they do not share the same mating song. This is an example of what type of speciation?
Allopatric
Temporal
Behavioral
Geographical

22. 21. In each generation, the tail of experimental mice were cut off for 75 generations. The 76th generation emerged with a tail. This disproves the idea of evolution is based on
Inheritance of acquired characteristics
Inheritance of natural variations
Survival of the fittest
Natural selection

23. 22. Random evolutionary changes in a small population are know as
Biogeography
Fitness
Embryology
Genetic drift

24. 23. If a small population randomly changes as a result of a natural disaster, this evolutionary change is referred to as
Mutation
Genetic bottleneck
Founder effect
Heterozygote advantage

25. The 2 species have the same diet
24. Which is the best evidence that two species have a common ancestor?
The 2 species have the same diet
The 2 species’ DNA sequence are 90% identical
The 2 species live in the same habitat
The 2 species’ skeletal structures are 90% identical
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26. 25. Based on the diagram, which of the following statements is true?
Lemurs are the most recent to evolve
Gorillas evolved directly from chimpanzees
Spider monkeys and lemurs evolved at the same time
Gorillas and baboons evolved from a common ancestor

27. 26. Which of the following statements is supported by the similarities between these embryos?
The turtle is more advanced than the chicken
The chicken has more offspring than the turtle
The turtle and the chicken are similar as adults
The chicken and the turtle share a common ancestor

28. 27. How did smaller dogs like bull terriers most likely evolve from wolves?
A small bull terrier-sized puppy was born to a wolf
The smallest wolf puppies were bred together over many generations
Wolves were fed less and did not grow as large
Wolf puppies were kept in the puppy stage so they did not grow large

29. 28. Which statement correctly interprets the importance of structures in biological classification systems?
Animals with homologous structures are closely related genetically
Animals with analogous structures are closely related genetically
Animals with homologous structures develop analogous structures
Animals with analogous structures develop homologous structures

30. 29. Which statement explains why species 1 and species 2 are different?
An individual changed itself to suit the environment
Natural selection can cause gradual speciation changes
Interbreeding of species 2 resulted in no genetic mutations
Extinction of ancestor species occurs as a result of interbreeding.

31. 30. Western coral snake have a striped color pattern and are poisonous
30. Western coral snake have a striped color pattern and are poisonous. Arizona mountain kingsnakes look like western coral snakes but are not poisonous. The color pattern of the Arizona mountain kingsnake is an example of
Camouflage
Mutualism
Mimicry
parasitism

32. 31. Which of the following is a source of genetic variation within a species?
Cloning
Selective breeding
Mutation
Natural selection

33. 32. Rainfall in a tropical region is below average for 10 consecutive years. Insect species adapted for dry conditions are much more plentiful at the end of the 10 years. Which of the following statements best explains the increase in the population of these insects?
Biodiversity in the region has increased due to the dry conditions
Insects with a high tolerance for dry conditions have migrated out of the region
Natural selection has selected against insect species that are adapt for dry conditions
Natural selection has favored insect species with a high tolerance for dry conditions

34. 33. Which of these best illustrates natural selection?
An organism with favorable genetic variations will tend to survive and breed successfully
A population monopolizes all of the resources in its habitat, forcing other species to migrate
A community whose members work together utilizes all existing resources and migratory routes
The largest organisms in a species receive the only breeding opportunities

35. 34. Vestigial structures, such as hip bones in whales and appendixes in humans, are those that have little or no function for the organism. What is the most likely reason for this loss of function over time?
The organism is undergoing speciation
The organism is experiencing genetic drift
The structure was over utilized by the organism
The structure was not highly beneficial to the organism

36. 35. Which lizard species is more likely to survive a drastic sudden change in climate?
Sonoran spotted whiptail because all members of the species can reproduce
The Sonoran spotted whiptail because their genetic similarities will keep the species stable
The Canyon spotted whiptail because their genetic differences improve their chances of adapting
The Canyon spotted whiptail because species with male and female members produce more offspring

37. 36. A lizard species mostly eats fruit from one particular type of tree. If a virus kills most of these trees, which individual lizards will most likely survive?
Lizards that can climb higher in the fruit trees
Lizards that have darker coloration
Lizards that can find other types of food
Lizards that produce more offspring

38. The horse has been a carnivore The horse has changed over time
37. Which of the following statements is best supported by the horse fossil record?
The horse has been a carnivore
The horse has changed over time
The horse has many common ancestors
The horse has lived in the same ecosystem

39. Each beak shape helps the birds to produce different songs
38. Which of the following best explains why the beak shape of each species of bird developed differently?
Each beak shape helps the birds to produce different songs
Each beak shape is an adaptation to a specific source of food
Each beak shape is designed to construct a different type of nest
Each beak shape helps protect the birds from a different predator

40. 39. Which of the following best explains what favors speciation in these situations?
Predators on the main island can easily migrate to follow the populations to the other islands
Lack of disease on the other islands enables the populations to grow and change without limit
The climatic conditions of the islands allow the populations to breed all year and produce several generations
The physical separation of the islands limits gene flow and interbreeding between the populations

41. They undergo rapid mutations
40. Major natural events, such as volcanic eruptions, significantly change the environmental conditions of the area where the events occur. What happens to the local populations that are unable to adapt to the new conditions or to move to other areas?
The become extinct
They undergo rapid mutations
They develop a scavenger lifestyle until conditions change
They interbreed with the populations of other species that have remained there

42. ANSWERS B D C A