AP BIOLOGY

Detailed explanation-1: -Macroevolution usually means the evolution of large-scale structures and traits that go significantly beyond the intraspecific variation found in microevolution (including speciation). In other words, macroevolution is the evolution of taxa above the species level (genera, families, orders, etc.).

Detailed explanation-2: -Macroevolution refers to the large-scale evolutionary changes that take place over long periods of time.

Detailed explanation-3: -Macroevolution refers to evolution of groups larger than an individual. Macroevolution encompasses the grandest trends and transformations in evolution, such as the origin of mammals and the radiation of flowering plants.

Detailed explanation-4: -Long periods of little change, Uyeda said, are called “stasis, ” a pattern that originally led to the concept of “punctuated equilibrium, ” controversial when it was first proposed in the early 1970s. This research supports the overall pattern of stasis and punctuational change.

Detailed explanation-5: -Example of macroevolutionary patterns as they would appear in a phylogenetic tree, including extinctions, adaptive radiations, and stasis.