Question

Which of the following is an example of microevolution?

A caterpillar changes form into a butterfly.
A population of birds with red feathers slowly changes to having blue feathers.
A dinosaur species evolves over time into a bird species.
A black cat has kittens with white spots.

Answer 1

The answer is : OPTION#2

A population of birds with red feathers slowly changes to having blue feathers

Explanation: Microevolution is a change in allele frequencies and can be caused by mutations, selection (natural and artificial), gene flow or genetic drift.

What's different from macroevolution is that this change happens over a shorter time when compared to macroevolution which is when big differences in the population happen.

From the options, a change in the colors of feathers seems like a microevolution that happened due to a mutation in the population over a period of time.

Answer 2

I believe the answer would be: a population to birds with red feathers slowly changes to having blue feathers. Microevolution is when a evolutionary change in a n species or small group of organisms especially over a short period.