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Q5: When elephants are swimming, what protects the
Q25: The protonephridia of flatworms consist of<br>A) true
Q44: In the respiratory cycle of birds, air
Q52: A flea manages to jump up to
Q71: Pressure levels in the aorta alternate between
Q112: Blood performs all the following functions except<br>A)
Q122: The terms "ammonotelic," "ureotelic," and "uricotelic" describe<br>A)
Q141: Why are birds such as penguins and
Q143: The timing of the spread of the
Q144: Which of the following contributes to increased