Assignment13-1




BIO190 : The Class : Mesozona and Parazon : Assignment13-1

Assignment 1: Study Questions

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1. Read page 239 in your textbook, "The Advent of Multicellularity." What does the author mean by
"…nature has experimented with producing organisms without cellular differentiation?" 1 point.

2. Which of the following hypotheses has the strongest evidence? Why? -Syncytial ciliate hypothesis -Colonial flagellate hypothesis
-Polyphyletic origin hypothesis.1 point.

3. Explain why leuconoids are considered to be the most complex sponges. 1 point.

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E-mail Sylvester Allred at Syl.Allred@nau.edu