Which of the following statements about bird respiration is false?
a. air flowing through the air channels in the lungs moves in a tidal fashion.
b. it takes two ventilation cycles for a single breath of air to move through a bird's respiratory system.
c. the unidirectional flow of air through a bird's lungs maintains a larger concentration gradient for diffusion than can be obtained through tidal breathing.
d. bird lungs receive fresh air during both inhalation and exhalation.
e. oxygen is exchanged between the air and the bloodstream in the lungs, but not in the air sacs.

D

Explanation: The pulmonary air sacs of birds only permit a unidirectional flow of air through the lungs. Unidirectional flow means that air is inhale and exhale through one trachea alternatively. This means the bird lungs only receive largely fresh air which has a high oxygen content during inhalation and do not receive fresh during exhalation. While air flow bidirectional in mammals.

chemical because it warmed up which involves temperature and it bubbled which includes changing

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earthquakes in florida are rare because the state is not located near any tectonic plates. in fact, florida is tied for first place as having the fewest earthquakes of any state. much of florida is limestone and seafloor materials that is not conducive to earthquakes.

explanation: