A heritable trait that helps an organism survive and reproduce where it lives is called:

1. Not every heritable trait improves an organism's prospects. 2. The ones that do get a specific name. 3. A heritable trait that helps the survival and reproduction of an organism in its present environment is called an adaptation. 4. A mutation is a change in DNA, which may help, harm or do nothing. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 18 'Evolution and the Origin of Species', sections 18.1-18.3_