Question

To what does the term macroevolution refer? a) an adaptation that is a clearly visible physical characteristic. b) an adaptation in which a small trait becomes larger over time. c) a change over time in a large population of different species. d) a field of study that attempts to identify similarities within all of this diversity and determine which species share an evolutionary relationship.

Answer 1

Macroevolution refers to large-scale evolutionary changes that result in the emergence of new species. It can occur through repeated microevolution over time or as a result of major environmental changes.

Step-by-step explanation:

Macroevolution refers to much bigger evolutionary changes that result in new species. Macroevolution may happen:

When microevolution occurs repeatedly over a long period of time and leads to the creation of a new species.

As a result of a major environmental change, such as volcanic eruption, earthquake, or an asteroid hitting Earth, which changes the environment so much that natural selection leads to large changes in the traits of a species.

Answer 2

Macroevolution refers to bigger evolutionary changes that result in new species, either through repeated microevolution or major environmental events.

Step-by-step explanation:

Macroevolution refers to much bigger evolutionary changes that result in new species. It can occur when microevolution happens repeatedly over a long period of time and leads to the creation of a new species. Another way macroevolution can occur is as a result of a major environmental change, such as a volcanic eruption or asteroid impact, which changes the environment so much that natural selection leads to large changes in a species' traits.