Breeding And Genetics Exam 1 Practice

Macro-environment refers to which of the following?

It affects the individual animals uniquely. It affects the group of animals. It is a permanent environment. It affects a single record.”

Correct Answer:

It affects the group of animals.

Explanation:

Macro-environment covers broad, population-level factors that influence many animals together, such as climate, season, housing, nutrition programs, disease pressure, and overall management. These factors tend to push performance in a similar direction for the group, so the effect is seen at the group level rather than being unique to each individual. It isn’t about effects that are specific to a single animal—that would be micro-environment. It isn’t about permanence; macro-environment can change with seasons and management, so the emphasis is on scope, not constancy. It also isn’t about a single data point or record. Therefore, macro-environment refers to factors that affect the group of animals.

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