Biology Test Review Assignment

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Biology Test Review Assignment

• Chapter 13

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• 1. What is the long, slow process of change in a
  species over time called?__________________
• 2.The preserved remains of ancient organisms are
  called ___________
• The long necks of giraffes are examples of
  ________ over time.
• __is the length of time it takes for ½ of the
  atoms in a radioactive sample to decay.
• Radioactive dating of rock samples is a method of
  _________dating.
• The longest units into which scientists have
  divided the earths history are ________.
• Most fossils are found in _________ rock.
• Scientists who specialize n the study of fossils
  are called _______________.

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• The millions of fossils that have been collected
  make up the __________.
• An example of a group of ________ structures is
  arms, wings, and flippers.
• What is the compound that carries energy in all
  living systems?_______
• Sedimentary rocks form when layers of small
  particles are compressed where?
  ___________________
• According to Darwins principle of common
  descent, species have descended from a
  ____________.
• Insects may become fossils if they are trapped in
  tree sap that hardens to become
  _________________.
• The longest era on the geologic time scale is the
  _____________.
• Darwin called the combination of physical traits
  and behaviors that help organisms survive and
  reproduce ___________________

4

• Who was arrested for teaching evolution that led
  to the famous Monkey Trial? _______________
• The preserved remains of ancient organisms are
  __________.
• If you look far enough back in time, you will see
  that species have a shared, or ________ ancestor.
  
• Scientists date the earths past with the help of
  a record in the rocks called the ___________ time
  scale.
• The long slow process of change in a species over
  time ___________.
• The tailbone at the base of your spine is an
  example of a ______________.

5

• How is sedimentary rock formed?
• How does the earths actual age of 4.5 billion
  years, help Darwins theory of evolution.
• Why have so many marine fossils been found in the
  Grand Canyon?
• Why are the early embryos of fish, birds, and
  humans much more alike than later embryo stages?
• Why are there only a fraction of the species
  thought to have roamed the earth represented in
  the fossil record?