Although Especially Useful to the Giraffe, the Rete Mirabile Is

Multiple Choice

Although especially useful to the giraffe, the rete mirabile is similar to a countercurrent heat exchange system in other related, less evolved, mammals.Thus a mechanism for _________________ homeostasis is likely to have evolved from a mechanism previously used for __________________ homeostasis.

A) blood pressure; pH
B) temperature; blood pressure
C) blood pressure; temperature
D) pH; blood pressure