Explain why everyone has a blind spot in each eye
What will be an ideal response?
The rods and cones send their messages to bipolar cells, which send their messages to ganglion cells, all within the eyeball. The axons from the ganglion cells join to form the optic nerve, which exits from the eye. The point at which it exits has no room for any receptors, and is therefore blind.
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Which of the following did you learn in class and from your text about babbling?
a. deaf infants exposed to ASL babble with their hands b. infants require exposure to linguistic sounds in order to engage in any kind of babbling c. infants babble more frequently when other babies are around who babble back at them d. deaf infants who learn ASL babble vocally in a way that is indistinguishable from hearing infants
When culture is used as an independent variable in research, the research is not truly
experimental because a. cultural differences are too complex to be studied experimentally. b. ethical considerations prevent experimentation on cultural groups. c. subjects are not randomly assigned to a cultural group. d. biological influences cannot be separated from cultural influences. e. matching of subjects is necessary.