Question

How does macroevolution differ from microevolution?

1) Microevolution includes the origination, diversification, and extinction of species over long periods of evolutionary time
2) Microevolution occurs within populations
3) Macroevolution includes adaptive and neutral changes in allele frequencies from one generation to the next.
4) b and c
5) all of the above are true

Answer 1

Microevolution focuses on genetic changes within populations, while macroevolution looks at the larger scale of evolutionary changes and the emergence of new species.

Step-by-step explanation:

Microevolution and macroevolution are two different scales of evolutionary changes. Microevolution refers to the changes in the genetic makeup of a population over a relatively short period of time, such as changes in allele frequencies. It occurs within populations and can be influenced by factors like mutations, natural selection, and genetic drift.

On the other hand, macroevolution deals with the emergence of new species and the broader patterns of evolutionary change over much longer periods of time. It involves the origination, diversification, and extinction of species. Macroevolution is driven by factors like geographic isolation, adaptive radiation, and genetic innovations.

In summary, microevolution focuses on genetic changes within populations, while macroevolution looks at the larger scale of evolutionary changes and the emergence of new species.