The transition from the conducting to the respiratory zone in the lungs occurs at the
A) respiratory bronchioles.
B) tertiary bronchi.
C) alveoli.
D) terminal bronchioles.
E) alveolar ducts.
Answer: A) respiratory bronchioles.
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If the cilia on Bob's inner ear hair cells are damaged, what can be done to improve Bob’s hearing, other than a hearing aid?
Hair cells are delicate sensors of sound, movement, and gravity. Since they are stimulated by movement of the stereocilia and kinocilium, these structures are vulnerable to damage when stimulus is too strong or sustained. A. transgenic expression of a cilia protein B. minoxidil treatment C. injection of microtubules into the cochlea D. not much – there is currently no drug that can regenerate hair cells
The epididymis is where what happens?
What will be an ideal response?
Which of the following is NOT a potential impact of ocean acidification?
A) Decreasing H+ concentrations B) Coral bleaching C) Changes in metabolism of marine animals D) Increasing carbonic acid concentrations
In a typical adult human about 180 L of fluid leaves the blood as filtrate each day. How much is reabsorbed?
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