An ordinal variable is one that contains categories that:
A. have an obvious ordering, and the difference in values is meaningful.
B. do not have an obvious ordering.
C. have an obvious order, but the difference in values is not meaningful.
D. None of the answers is correct.
Answer: C
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________ and ________ microbiology investigates the spoilage of products for human consumption and the use of microorganisms in the production of cheese, yogurt, pickles, beer, and the like.
Fill in the blank(s) with the appropriate word(s).
Experiments by Steve Tanner and colleagues (2000 ) with gray tree frogs demonstrated that female frogs preferentially mated with male frogs exhibiting ________
A) many short, repetitive calls over single long calls B) longer calls rather than shorter calls C) larger body size over small body size D) louder calls over softer calls E) trilling calls over constant calls
Sickle cell anemia is caused by a missense mutation. Indicate whether the statement is true or false
Crossing smooth-seeded pea plants with wrinkled-seeded pea plants resulted in progeny that all had smooth seeds. This indicates that the wrinkled-seed trait is
A) dominant only. B) codominant and dominant. C) codominant and recessive. D) codominant only. E) recessive only.