Many snakes and lizards live in the desert, where temperatures are high during the day and cold at night. How does the temperature range affect the size of the snakes and lizards? A. High daytime temperatures allow them to grow as large as the food supply will allow.

B. Cold nighttime temperatures limit their size, because large ectotherms need a long time to warm up in the sun.

C. High daytime temperatures limit their size, because large endotherms would overheat on very hot days.

D. Cold nighttime temperatures limit their size, because large endotherms would lose too much of their body heat.