GEOL 1302 – LAB 08: EXPLORING FOSSILS AND LIFE CLASSIFICATION |
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GEOL 1302
Lab 08
Fossils
In this lab, you are going to examine several fossil samples, the three domains of life, and
the classification of organisms. Please submit your worksheets to your instructor.
Helpful Websites:
Link 1: http://www.ucmp.berkeley.edu/exhibits/historyoflife.php
Link 2: http://www.ucmp.berkeley.edu/help/timeform.php
Link 3: http://www.ucmp.berkeley.edu/help/taxaform.html
Link 4: http://www.paleoportal.org/index.php?
globalnav=fossil_gallery§ionnav=taxon&taxon_id=15
Part I
Investigate Links 1 and 2 (given on page 1) in order to answer the following questions:
1) Select the three domains into which all of Earth’s life forms are grouped:
1
, lOMoAR cPSD| 61371432
Archae, Bacteria and Eukarya
• Animals Bacteria
• Plants Protists
• Eukaryotes Archaea
• Fungi
2) The following feature makes archaea distinct from other groups of organisms:
• They have a cell nucleus.
• They commonly live under extreme temperature and salinity. They have cell
membranes. (Correct answer) They are multicellular organisms.
3) The presence of archaea in rocks can be determined because:
• They are bigger than bacteria.
• Lipids and fatty acids are associated with archaea.
• They are the only group that uses the chemical isoprene.(Correct answer) They have a
cell nucleus.