The medulla is responsible for people's ability to selectively attend to certain kinds of information in their surroundings

Synapses develop as a result of the growth of both _____ and _____

a) myelination; mitochondria. b) cell membranes; ion channels. c) dendrites; axons. d) vesicles; plasticity.

Scientific hypotheses are generated for research studies. Which of the following is an example of a scientific hypothesis?

"Space exploration benefits our world, and the United States needs to increase funding for NASA." "Marital satisfaction tends to improve when the youngest child is grown and leaves the home because parents now have more time and energy for the marital relationship." "HIV causes AIDS, and AIDS is a disease that will never be cured." "If a tree falls in the forest, and no one is there to hear it, does it make a sound?"