Multiple Choice
When bar-headed geese fly at very high altitudes (possibly over Mount Everest!) , they breathe very thin air where the partial pressure of oxygen is very low compared to that at sea level. They are able to do this because they have a modified version of the hemoglobin protein. Which of the following is their hemoglobin protein most likely similar to in terms of its ability to bind oxygen?
A) an adult human
B) a human fetus
C) a bird that lives at sea level
D) an earthworm
Correct Answer:

Verified
Correct Answer:
Verified
Q12: The tracheal system of an insect is
Q13: Cigarette smoke can affect the white blood
Q41: When bar-headed geese fly at very high
Q51: Some crocodiles and turtles have an exceptional
Q53: When you are breathing normally, exhalation results
Q54: Which part of the diagram shows alveoli?
Q55: When you exhale, you<br>A)exchange CO₂ for O₂.<br>B)take
Q59: Which respiratory structure likely has the largest
Q60: Evolutionary adaptations for survival on land produced
Q68: When you hold your breath, which of