Question

Scientists break down evolution into which two categories?

microevolution and macroevolution

macroevolution and genetic drift

microevolution and mass extinction

natural selection and macroevolution

Answer 1

A. Microevolution and Macroevolution

Step-by-step explanation:

Scientists break evolution down into 2 parts: Micro and Macro evolution.

- Microevolution is evolution in a community, and it is very slow and gradual. For example, wolves overtime evolved into dogs, and over time, mosquitos became resistant to chemicals set out to kill them.

- Macroevolution is the type of evolution that refers to long, large changes in evolution over long periods of time and can lead to the creating of new species. For example, a dinosaur species evolves over time into a bird species.

Hope it helped!!

P.S Here is a picture of the difference between Micro and Macro that helped me when I was learning this!!

Answer 2

Option A, microevolution and macroevolution

Step-by-step explanation:

Scientist have categorized evolution base on the time scale into following two categories

a) Macroevolution – These are the processes which take a long time to occur such as formation of a new species, extinction of any rare species etc, Also it affects a large mass of population or the entire population

b) Microevolution – In this, the processes of change take a short time and usually they impact only a certain set of species for a shorter time period.

Thus, option A is correct.