The iguana shown in the image below has just climbed out of the ocean and has a body temperature that is lower than the air temperature.
What do the arrows illustrating heat transfer from the iguana indicate?
A) The iguana is gaining heat as a result of evaporation of salt from its body.
B) The iguana is gaining heat from conduction from the sun.
C) The iguana is losing heat as a result of radiation of metabolic heat.
D) The iguana is losing heat as a result of evaporation of water off its skin.

Question

The iguana shown in the image below has just climbed out of the ocean and has a body temperature that is lower than the air temperature. 
What do the arrows illustrating heat transfer from the iguana indicate?
A) The iguana is gaining heat as a result of evaporation of salt from its body. 
B) The iguana is gaining heat from conduction from the sun. 
C) The iguana is losing heat as a result of radiation of metabolic heat. 
D) The iguana is losing heat as a result of evaporation of water off its skin.

Quizplus · Accepted Answer

The arrows illustrating heat transfer from the iguana indicate that it is losing heat as a result of evaporation of water off its skin. When the iguana climbs out of the ocean, water on its skin will evaporate, resulting in a cooling effect. This is because the energy required for water to evaporate comes from its surroundings, including the iguana's body, causing a reduction in the iguana's body temperature.

The Iguana Shown in the Image Below Has Just Climbed