TOEFL Reading: ETS-TOEFL阅读机经 - N_5C32NZBW_MDR84L$

According to paragraph 4, how are active-foraging lizards and sit-and-wait lizards different from each other A. Sit-and-wait lizards tend to have more red blood cells in their blood than active-foraging lizards do. B. Active-foraging lizards' blood carries less oxygen to the tissues than sit-and-wait foraging lizards' blood does. C. Sit-and-wait lizards carry out cellular metabolism more efficiently than active-foraging lizards do. D. Active-foraging lizards tend to have larger hearts than sit-and-wait lizards do.