Which term describes evolutionary change at the level above the species?

Which term describes evolutionary change at the level above the species?

• A. Punctuated equilibrium
• B. Macroevolution
• C. Null hypothesis
• D. Hardy-Weinberg equilibrium

Answer: (B)

Macroevolution is the term for evolutionary change that occurs above the species level—across multiple species and higher taxa—encompassing processes like speciation and broad patterns seen in the fossil record. That makes it the best fit for describing changes that span more than one species, including how new genera, families, or larger groups arise over time. Punctuated equilibrium, while related, describes the tempo of evolution—rapid bursts followed by long periods of little change—rather than the level at which change occurs. The other options refer to concepts outside of evolutionary level: Hardy-Weinberg equilibrium deals with allele frequencies in a population under no evolutionary forces, and a null hypothesis is a general statistical baseline, not a term for evolutionary scale.

Macroevolution is the term for evolutionary change that occurs above the species level—across multiple species and higher taxa—encompassing processes like speciation and broad patterns seen in the fossil record. That makes it the best fit for describing changes that span more than one species, including how new genera, families, or larger groups arise over time. Punctuated equilibrium, while related, describes the tempo of evolution—rapid bursts followed by long periods of little change—rather than the level at which change occurs. The other options refer to concepts outside of evolutionary level: Hardy-Weinberg equilibrium deals with allele frequencies in a population under no evolutionary forces, and a null hypothesis is a general statistical baseline, not a term for evolutionary scale.