In some deserts, the air temperature can change over 60 to 70 degrees in a single day. Which of these properties would allow humans to survive in an environment that has such drastic changes in temperature?
Eliminate
A)
cold bloodedness
being endothermic
being ectothermic
being photosynthetic

Being endothermic

Explanation:

Humans are not cold-blooded and we don't photosynthesise so only the second option applies to humans;

We produce heat internally within our bodies so we are endotherms, i.e. warm-blooded;

We shiver and have thermogenesis through metabolism to generate heat to keep body temp up and also sweating and physiological mechanisms to cool out bodies down.