Impulses from the spiral organ travel on the vestibulocochlear nerve
Indicate whether the statement is true or false
TRUE
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As a general rule, in temperate regions the most important environmental cue that triggers migration is
A) Photoperiod. B) Temperature change. C) Change in food quality and abundance. D) All of the above
Match the immunoglobulin to its description.
1. crosses the placenta 2. present in breast milk 3. physiological role is unclear 4. binds to mast cells, triggering degranulation 5. reacts to blood group antigens A. IgA B. IgM C. IgG D. IgD E. IgE
What occurs as a result of a negative feedback mechanism?
A. A negative change is accentuated. B. The change moves farther from the set point in a negative direction. C. A body function is stopped. D. A variable is kept close to its set point.
Which vessels empty blood into the left atrium?
A. aorta B. right atrium C. pulmonary trunk D. pulmonary arteries E. pulmonary veins