Earth's birds developed their diversity through natural selection by some birds need to have long beaks if they need to fish and some need webbed feet to swim. They have these traits through natural selection.
<span>Cell responses b and c would both occur when cell exposed to the a+b signaling molecules.
The presence of the C signaling molecule will lead to cell response c. Cell response b occurs because the activation of c2 in the C pathway stimulates b1, leading to cell response b. Cell response A remains inactivated because it is inhibited by pathway b activation and its signaling molecule was not present.</span>
Dr. Landry is recording voltage fluctuations which are the result of ionic current within the neurons of the brain . Electroencephalography is non-invasive monitoring method to record spontaneous electrical activity of the brain over a period of time.It is used to diagnose epilepsy, sleep disorders, encephalopathies, brain death.