Answer:Un estudio de la Universidad de Barelona demuestra, por primera vez, cómo pueden separarse los genes a lo largo de los linajes evolutivos mediante el mecanismo de la retrotransposición, que es la síntesis de ADN a partir de ARN a través de la transcriptasa inversa.
The Skinner box allows experimenters to test animals without having to "re-load" the experiment, allowing the trainer to reinforce the animal with <u>operant conditioning</u> trials.
Explanation:
There are a number of behavior and actions shown by a particular specie when they are placed or position inside a given environment for the Skinner box it involve a animal which was constantly attempting to get its hands on the given bait.And that is why the following actions were termed as the operant conditioning.