In what level of measurement is the distance from one attribute to another meaningful?
a. nominal
b. ordinal
c. interval
d. ratio
c
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(n) ______ entails examining families across multiple generations to find the association between particular DNA marker alleles and particular traits.
a. significance test b. linkage analysis c. meta-analysis d. longitudinal study
During his rain storm experiment, Luigi Galvani discovered that
a. electricity is easily conducted by metal. b. lightening over-cooks frogs. c. neural impulses cannot be conducted in dead frogs. d. neural impulses that travel along neurons are electrochemical in nature.
What is a photoreceptor?
a. The part of the spectrum that stimulates the eye and produces visual sensations. b. Cells of the retina that respond to light. c. Neurons whose axons form the optic nerve. d. Neurons that conduct neural impulses from rods and cones to ganglion cells.
In a study of mothers who used combinations of alcohol, marijuana, and cocaine during pregnancy, it was found that they produced children who a. could not be distinguished from those produced by mothers who used alcohol only
b. had less gray matter than other children for the first few weeks of life, but who were subsequently quite normal. c. had less white matter than other children. d. had less gray matter than other children at least until age 10-13 years.