Multiple Choice
Most phyla of aquatic invertebrates have improved the rate of gas exchange by creating a water current over their respiratory surfaces, thereby _____.
A) changing the diffusion constant
B) increasing the surface area for diffusion
C) decreasing the distance for diffusion
D) increasing the concentration difference
Correct Answer:
Verified
Correct Answer:
Verified
Q1: During exhalation,the diaphragm _.<br>A)contracts and moves down<br>B)relaxes
Q7: In the future, it may be possible
Q8: The large number of alveoli in
Q9: Four-year old Sammy is having a temper-tantrum.In
Q10: In the countercurrent exchange in a fish's
Q11: In tissue capillaries, _ combines with water
Q14: What change would increase the rate of
Q15: Humans cannot survive long at altitudes greater
Q16: The North American pronghorn antelope can run
Q17: The primary advantage of gills versus the