I believe the example of an environmental variation in the above question is, A. Marge dyes her hair blue. Variation represents any difference between cells, individual organisms, or groups of organisms of any species caused by either genetic differences or by the effect of environmental factors. Environmental variation is the ability of an organism to alter its phenotype depending on environmental conditions.
Answer:
Due to gluten intolerance.
Explanation:
Gluten is a protein present in the food items like wheat, barley and bread. Nearly 1% of the population are unable to digest the gluten protein.
The gluten intolerance people feel bloated as gas build up in their body after the consumption of wheat. This may leads to uncomfortable and health problems in gluten intolerant people. This is a type of auto-immune disease.
Thus, the correct answer is gluten intolerance.
