Name______Period______Date______

Unit 1b CDA Review Questions

  1. What gas was not present when the Earth’s atmosphere was first formed?
  1. Whose experiment proved that the early Earth atmosphere could produce simple organic compounds, using electricity and compounds from the atmosphere?
  1. What is the name of the theory for how the first eukaryotic cells appeared, in which one prokaryotic cell ingested another?
  1. In what type of rocks are most fossils found?
  1. What process is used to date fossils?
  1. ______is the idea that life appeared from nothing. Example: Maggots from rotting meat/
  1. ______disproved spontaneous generation by stating that living things come from other living things.
  1. ______is the modern belief that life can only come from other life.
  1. What is evolution?
  1. What scientist developed the Theory of Acquired Characteristics?
  1. What does Darwin’s Theory of Natural Selection state about organisms?
  1. Describe Lamarck’s view of giraffes and how their necks get longer.
  1. Describe Darwin’s view of giraffes and why there is more long necked giraffes.
  1. List 3 points that are true about natural selection.
  1. On what island did Darwin conduct most of his research?
  1. What happened to the finches that Darwin observed during his studies?

Did they all have a common ancestor?

  1. ______is the process by which a population becomes better suited to its environment.
  2. What will happen if there is a change in an environment over time, but NO adaptations are made?
  1. When 2 plants from deserts on different continents are compared, their appearances are similar. What type of evolutionary evidence explains this?
  1. Homologous structures have similar structures but______

______.

  1. Analogous structures have similar functions, but______.
  2. What is a vestigial organ?
  3. Circle the pair below that is an example of homologous structures.
  1. Hair: scalp
  2. DNA:RNA
  3. Tree: fruit
  4. Arm: wing
  1. Circle the pair below that is an example of analogous structures.
  1. Hair: fur
  2. Legs: hips
  3. Butterfly wing: bird wing
  4. Tree: fruit
  1. Circle the human vestigial organ(s) listed below.
  1. Liver
  2. Appendix
  3. Tail bone
  4. Second kidney
  1. Two organisms are closely related and thought to share a similar evolutionary ancestor. Would you expect these organisms to have biochemical similarities? Why or Why not?
  1. What animals, according to the following chart, are most closely related to humans?

Amino-Acid Differences Compared with Human Hemoglobin

Species / Number of Differences
Lamprey / 125
Frog / 67
Dog / 32
Macaque / 8
  1. A permanent change in DNA is called a:______
  1. What is an adaptation?
  1. Give an example of organisms that have converged:
  1. Define convergent evolution:
  1. Define divergent evolution:
  1. If there is a change in an organisms environment and the organism does not adapt,______is likely to occur.
  1. How do bacteria become resistant to an antibiotic?
  1. What is artificial selection?
  1. What is punctuated equilibrium?