A sampling method in which subgroups of individuals are identified in a population and then all individuals in those subgroups are included in the sample is known as ______.
A. cluster sampling
B. systematic sampling
C. simple random sampling
D. stratified random sampling
Answer: A
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Astronauts experiencing weightlessness in space suffer major impairments of which sensation?
a. Kinesthetic sensation b. Vestibular sensation c. Synesthesia d. Vomeronasal sensation
Cancer is best defined as:
a. an illness caused by the presence of a malignant tumor b. a mutated cell c. a cell with retarded growth d. a cell with accelerated growth
According to Selye, physical symptoms and other signs of strain first appear in the ______ stage of the general adaptation syndrome
a. initial response c. resistance b. alarm reaction d. exhaustion
________ are specialized cells that process information and allow communication in the nervous system
Fill in the blank with the appropriate word.