Mid Term 6th grade
  • 1. Organisms that are most fit to their environment will have the best chance of survival
A) Natural Selection
B) Extinction
C) Evolution
D) Survival of the Fittest
  • 2. Structures that have different mature forms, but develop from the same embryonic structure are called:
A) adaptations
B) analygous structures
C) vestigial structures
D) homologous structures
  • 3. On the Galapagos Islands, Darwin observed that the characteristics of many animals and plants:
A) all looked alike
B) varied from island to island
C) were inherited from humans
D) were acquired through use
  • 4. The process by which a species becomes better suited to its environment is called:
A) adaptation
B) niche
C) natural selection
  • 5. This evidence comes out of the Earth's crust. It is the timeline of past life, organized by estimated ages and classified by similarities in form. What is it?
A) genus
B) trace fossil
C) fossil record
D) natural selection
  • 6. Species producing more offspring than can survive:
A) variation
B) population
C) adaptation
D) overproduction
  • 7. What was the name of the chain of islands that Darwin visited?
A) Caribbean
B) Caymen
C) Tortugas
D) Galapagos
  • 8. The type of structure that seems to no longer serve a purpose in an organism is called:
A) homologous
B) analogous
C) vestigial
D) dichotomous
  • 9. In the theory of natural selection, species are most likely to survive if they:
A) are isolated
B) inherit acquired traits
C) have variations that make them adapted to their environment
D) overproduce
  • 10. ___________ are evidence of things that were once alive that have been turned to stone.
A) stones
B) dinosaurs
C) fossils
D) whales
  • 11. An example of analogous structures would be :
A) bird wing and dog arm
B) bat wing and butterfly wing
C) whale flipper and human arm
  • 12. When the last individual organism of a species dies.
A) evolution
B) extinction
C) mutation
D) natural selection
  • 13. In December of 1831, the _____________ sailed from England to explore the South American coast with Charles Darwin aboard.
A) RMS Titanic
B) HMS Bloodhound
C) HMS Beagle
D) USS Eisenhower
  • 14. ________________ was the key to developing new species based on what Darwin observed on the Galapagos Islands
A) Reproductive Isolation
B) Transcription
C) Artificial Selection
D) Evolution
  • 15. The finches of the Galapagos Islands were similiar in form except for variations of their beaks. Darwin observed that these variations were useful for :
A) attracting a mate
B) defending territory building nests.
C) gathering food
  • 16. Many Savannah elephant populations migrate during the dry season to find water sources. This is an example of which type of adaptation:
A) Physiological adaptation
B) Structural adaptation
C) Behavioral Adaptation
D) Natural selection
  • 17. A fossil that comes from the imprint of the swish of a tail or a footprint that was left is known as a ________________ fossil.
A) mold
B) Trace
C) cast
D) stone
  • 18. Different types of bird beaks are an example of:
A) physical adaptations
B) learned behaviors
C) food webs
D) weathering
  • 19. No two zebras have exactly the same pattern of stripes. This is an example of :
A) speciation
B) adaptation
C) variation
D) evolution
  • 20. __________occurs when populations of the same species evolve to become so different genetically that they can no longer breed with one another to produce fertile offspring.
A) Speciation
B) Weathering
C) Adaptation
D) Mutation
  • 21. ______________Occurs when populations become divided by physical barriers that keep populations from mating
A) extinction
B) environmental change
C) overproduction
D) geographical isolation
  • 22. _______________ structures are body parts of organisms that are similar in structure and position but different in function.
A) Vestigial
B) Homologous
C) Analogous
  • 23. Fossils from organisms that died longer ago are buried ___________ in the sediment/rock than fossils from organisms that died more recently.
A) above
B) deeper
C) on top of
D) next to
  • 24. Evolution occurs in:
A) dinosaurs
B) none of these
C) individuals
D) populations
  • 25. All of the following are layers of the atmosphere except:
A) lithosphere
B) stratosphere
C) exosphere
D) thermosphere
  • 26. The process by which heat is trapped near earth's surface is called:
A) tropical effect
B) greenhouse effect
C) butterfly effect
D) warming effect
  • 27. The layer of the atmosphere in which we live is called the :
A) thermosphere
B) exosphere
C) troposphere
D) mesosphere
  • 28. The layer of the atmosphere where satellites orbit the earth is called the
A) stratosphere
B) mesoshpere
C) troposphere
D) exosphere
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