A4.1 1 Evolution and Speciation

Apuntes

A4.1 – Evolution and Speciation CONTENT Define evolution. Evolution is a change in heritable characteristics of a population. Distinguish between heritable and acquired characteristics. Heritable characteristics are the traits that offspring inherit from their parents. Some examples are skink color, eye color. Acquired traits are the characteristics of individual organisms that change during their lifetimes, that means they are not inherited. Examples: riding a bike, learn how to write Define selective breeding and artificial selection. selective breeding is the process by which humans have selected either animals or plants to be bred or planted over thousands of years for their benefits. process of intentionally choosing and mating animals/plants with desired traits to produce offspring with those desired traits. Artificial selection changes in animal and plant species achieved by repeatedly selecting and breeding the individuals most suited to human uses. (involves people intentionally breeding organisms with particular desirable characteristics, resulting in genetic changes within populations over generations.) List reasons why humans have selectively bred domesticated ani...