Hillyard and colleagues found that in a dichotic tone proced…

Hillyard and colleagues found that in a dichotic tone procedure, selective attention to an auditory stimulus from one ear produced an early positive ERP deflection that was enhanced for the selectively attended input. This phenomenon is called the _______ effect.

Below is a figure representing an experiment conducted by G….

Below is a figure representing an experiment conducted by G.E. Gause with paramecium.  He cultured two species of paramecium separately and then cultured them both together.A.  What causes the population of P. caudatum to rapidly decline when the two species are grown together?B.  Why does the growth rate of both paramecium species eventually reach zero when the species are grown separately?