go to https://www.ck12.org/earth - science/earth - history - and - clues - from - fossils/lesson/fossils…

go to https://www.ck12.org/earth - science/earth - history - and - clues - from - fossils/lesson/fossils - iii - clues - from - fossils/ and scroll about half way down the page. 19. copy the definition of an index fossil. 20. what are the three characteristics that make a fossil a good index fossil? destination #4: “sci show – mass extinctions” go to the mass extinctions video slides to watch the scishow’s video about mass extinctions and answer the questions below. 21. what is a mass extinction? 22. list each of the 5 mass extinctions and the causes of each one. 1.

go to https://www.ck12.org/earth - science/earth - history - and - clues - from - fossils/lesson/fossils - iii - clues - from - fossils/ and scroll about half way down the page. 19. copy the definition of an index fossil. 20. what are the three characteristics that make a fossil a good index fossil? destination #4: “sci show – mass extinctions” go to the mass extinctions video slides to watch the scishow’s video about mass extinctions and answer the questions below. 21. what is a mass extinction? 22. list each of the 5 mass extinctions and the causes of each one. 1.

Answer

Brief Explanations:

  1. You need to visit the provided link, scroll about halfway down the page, and copy the definition of an index fossil from the content there.
  2. After finding the information on index fossils on the page, identify and list the three characteristics that make a fossil a good index fossil.
  3. Watch the Sci - Show's video about mass extinctions at the given destination and find the definition of a mass extinction from the video content.
  4. Watch the video and list the five mass extinctions and their respective causes as presented in the video.

Answer:

  1. (Requires visiting the link and copying the definition)
  2. (Requires visiting the link and identifying the characteristics)
  3. (Requires watching the video and finding the definition)
  4. (Requires watching the video and listing the extinctions and causes)