Question

at 6,000 calories a day, a person with genotype x will weigh 285 lbs with much energy and high cholesterol levels. at 3,500 calories a day, the person will weigh 200 lbs with much energy and slightly elevated cholesterol levels. at 1,800 calories a day, the person will weigh 175 lbs with little energy and low cholesterol levels. these are examples of that genotypes

o adaptive capacities
o environment
o norm of reaction
o this has nothing to do with the genotype.

Explanation:

The norm of reaction refers to the pattern of phenotypic expression of a single genotype across a range of environments. Here, different calorie - intake environments (6000, 3500, 1800 calories a day) lead to different phenotypes (weight, energy levels, cholesterol levels) for the same genotype X. Adaptive capacities are more about the ability to adjust to long - term environmental changes, and environment is just the external factor, not the pattern of expression.

Answer:

C. norm of reaction