Why does all light have a wavelength between about 400 and 700 nm?
a. Wavelengths outside that range cannot travel very far through the air
b. We define light as the wavelengths that stimulate our receptors.
c. Wavelengths outside that range travel more slowly.
d. The air acts as a prism to convert other wavelengths toward this range.
b
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The most commonly occurring sexually transmitted infection in adolescents is chlamydia
Indicate whether the statement is true or false
When River tastes ginger, an orange blob appears in her field of vision. River has a type of _____
a) brain tumor. b) synesthesia. c) mental delusion. d) neurosis.
Scientific evidence regarding the effects of aging on the nervous system seems to have changed over the last decade. Which statement below would NOT be supported by today's evidence?
a. Neurons are capable of changing with age. b. After a person reaches the age of 8, his or her neurons do not grow dendrites to make new connections. c. Some neuron pruning in old age may serve the same purpose as pruning in infancy. d. Scientists' estimates of daily neuron loss in old age have declined significantly in the last 20 years.
Your grandfather works on the New York Times crossword puzzle every day. He has been very good at solving the puzzle and nearly always does. His ability to remember the meaning of words has shown no decline as he has aged, and really shows very little decline for most older adults. What type of memory is this?
a. semantic memory b. procedural memory c. episodic memory d. lexical memory