Of the following, which is the oldest event?
a. origin of fungi
b. appearance of land tetrapods
c. formation of Pangea
d. age of dinosaurs
e. all of these events are equally old
A
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Plant cells typically achieve cytokinesis by:
A. binary fission. B. forming a cell plate across the middle of the cell. C. forming a cleavage furrow that pinches the cell into two. D. chromosome condensation. E. chromosome elongation.
Which disease is caused by an E. coli pathogen?
A. Traveler's diarrhea B. Meningitis C. Hemorrhagic diarrhea D. Urinary Tract infection
All vertebrates contain a similar pattern of organs, indicating that they are related to one another. This represents which of the following lines of evolutionary evidence?
A. homology B. development C. biogeography D. fossil record E. convergent evolution
One current goal of cloning is to ____.
A. duplicate certain humans B. create new species C. promote evolution D. experiment with alien DNA E. retain an animal’s desirable characteristics