Wait what please explain I'm so lost
The best answer would be "research reasons why species change over long periods of time"
if not i apologize but this is my best guess<span />
Answer:
pleas clarify do you mean chiral molecules/enantiomers or a biological structure?
Explanation:
Answer: the expression of certain genes is affected by temperature
Explanation:
For organisms to survive changing environmental conditions, a lot of molecular processes occur in the genes.
For the arctic fox, enzymes coded by specific genes are periodically "switched on or off" depending on the temperature.
Thus, the change in colour can be EXPLAINED by the expression of certain genes affected by temperature