Which of the following adaptations does not protect tundra organisms from heat loss?
a. thick fur
b. retention of dead leaves
c. dense hair
d. production of chemicals to ward off insects

d. production of chemicals to ward off insects

Adaptations are the result of evolution in different living organisms. This process occurs amazingly through gene mutation but it takes a very long period in time. Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time.