Mutation vs. Adaptation vs. Variations

Natural Selection
Mutations, variations, etc...

Multiple Choice

Natural selection is best described as:

• organisms stop doing evolution

• organisms that are better suited to the environment cannot pass on traits to offspring

• organisms have adaptations that make them better able to live in their environment

• a mistake or error in DNA

• typically occurs after birth

• caused by chemicals, radiation, or incorrect DNA replication

Mutation

• differences in DNA

• typically changes that someone is born with

​​Variation

Mutations

Mutations can have a positive, negative, or no effect at all on an organism.

Multiple Choice

Cancer typically develops after someone has been exposed to some kind of chemical or radiation. Cancer is an example of a:

• mutation

• variation

Multiple Choice

In a family of six, mom and dad have blue eyes. Five of their six children have the same color blue eyes as their parents, but one child was born with blue eyes that have green and gold flecks. This is an example of:

• mutation

• variation

• drive natural selection

• improve chances of survival

Adaptations

• are mistakes that can have some effect or no effect on an organism

• occur randomly

Mutations

• inherited from parents

• could improve chances of survival

Variations

Video:

https://www.youtube.com/watch?v=FnwhvYx1iqY

Multiple Choice

Which type of reproduction results in more genetic variation and gives organisms the best chance at developing better traits for survival?

• sexual reproduction

• asexual reproduction