The upper half of the esophagus contains smooth muscle and the lower half contains skeletal muscle.
Answer the following statement true (T) or false (F)
False
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Meiosis is necessary because
A. otherwise the fertilized ovum will have too much genetic material. B. otherwise reproduction would have to be asexual. C. otherwise the fertilized ovum will have too little genetic material. D. otherwise too many mutations will occur.
Droopy eyelids and double vision can result from injury to the ________ nerve
A) optic B) oculomotor C) trochlear D) olfactory E) facial
What part of your tracing illustrates vagal escape?
A) the part where the force of contraction decreased B) the part where the heart stopped C) the part where the heart resumed beating D) the part where the heart rate slowed down
What kind of stimuli can the internal ear sense?
A) touch B) odorants C) visual photons of light D) gravity and acceleration, rotation, or sound E) dissolved chemicals