Perceiving either a vase or two facial silhouettes looking at each other was used to illustrate the Gestalt principle of _______; perceiving two ambiguous characters numerically as 13 or alphabetically as the letter B was used to illustrate ________.

Which of the following best describes Hox gene function in segmental identity?

Extra credit: Describe how the systems of the body work together to produce movement. Be specific.  Note: This is extra credit. Save it for the end so that you do not run out of time. 

The students in your class are always eager to race out of the room as soon as class ends. While the teaching is wrapping up in the last few minutes, you are patiently waiting in your chair. The ATP stored within your muscles just prior to you jumping out of your seat is: (select all that apply)

Which of the following is associated with the fatigue response during exercise? Select all that apply.

Your physical therapist hits the patellar tendon which initiates the stretch reflex. As a result, an efferent signal is sent back to the intrafusal fibers of the quadricep causing contraction of the muscle. The afferent signal is detected by:

You are running a short race (about 400m) that will take you about 1 minute. Throughout the course of your run, from time 0.01s to 1-minute, which energy sources and systems will you utilize? Select all that apply.

Muscle growth may lead to an increase in branching of the neuron axon terminal of the neuromuscular junction. With this change, you would expect: Select all that apply.

From which region do sensory placodes originate during embryonic development?

Which of the following signaling centers, when ectopically placed in the embryo, can induce the formation of a secondary body axis?