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In module 3 we discussed multistage decision making.  Which of the following is a common technique for evaluating multistage decisions?

All chordates, at some point in their life cycle, share four hallmark characteristics.  One of these characteristics is a postanal tail.  Write two more of these characteristics shared by all chordates in the two blanks provided.  [1] [2]

What traits evolved in Chondricthyes that allowed them to become agile mobile predators of larger prey?

  Select the correct choice  

The act of moving the vocal folds together is called _____________.

The nasal turbinates in the nasal cavity affect air in the following ways (select all that apply)

During early infancy, the lower border of the velum is far away from the upper border of the epiglottis.

From the list below, indicate which are cartilages of the larynx:

The cavity directly between the vocal folds is called the:

If fundamental frequency is 167 Hertz, that means the the vocal folds are vibrating 16.7 times per second.