At approximately 6 to 24 weeks after conception, nervous system cells move outward from their point of origin to their appropriate locations and create the different levels, structures, and regions of the brain. This is known as .

List two limitations of natural selection

What is the cause hearing loss in human being

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.