When you look directly at an object, the image of the object focuses on a spot where many receptor cells called cones are packed together. This spot, which also gives us our sharpest vision, is the _____
a) retina.
b) ganglion.
c) fovea.
d) blind spot.
Answer: c
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The two basic kinds of cells in the nervous system are _____
a. neurons and glia b. dendrites and axons c. ribosomes and lysosomes d. neurons and axons
Which of the following variables has been labeled with an incorrect measuring scale?
a. the number of students in a psychology class - ratio b. ranking in a beauty contest - ordinal c. finishing order in a poetry contest - ordinal d. self-rating of anxiety level by students in a statistics class - ratio
Schaie's influential study on intellectual change over time utilizes the ____ research design he invented.
A. cross-sectional B. longitudinal C. sequential D. postformal
The process of natural selection involves the inheritance of genes, the desire of organisms to survive, and the selective survival of those with characteristics that make them more resistant to dangers in the environment. What else is a critical component of natural selection?
A. Variation in appearance and behaviors B. Mutations of the chromosomes C. Epigenome defects D. Epigenetic flaws